Diabetes Mellitus

Diabetes mellitus is a metabolic disorder characterized by the body's inability to properly regulate blood glucose levels due to problems with insulin production or function. In guinea pigs, this condition occurs when the pancreas fails to produce adequate insulin or when body tissues become resistant to insulin's effects, resulting in persistent hyperglycemia, elevated blood sugar. While diabetes is less common in guinea pigs than in some other companion animals, it represents a serious and potentially life-threatening condition that requires dedicated long-term management. Understanding diabetes in guinea pigs is important for owners because early recognition and proper treatment can significantly improve outcomes and quality of life.

Diabetes mellitus in guinea pigs occurs with varying frequency, and its true prevalence is not precisely known. The condition appears more commonly in certain populations, including obese guinea pigs, older animals, and possibly certain genetic lines or breeds, with some studies suggesting Abyssinian guinea pigs may have higher susceptibility. Guinea pigs with diabetes may have Type 1 diabetes, characterized by insufficient insulin production, Type 2 diabetes, characterized by insulin resistance, or combinations of both. Unlike humans and dogs where autoimmune Type 1 diabetes is well characterized, the mechanisms underlying guinea pig diabetes are less thoroughly studied but appear to involve multiple factors including genetics, diet, obesity, and potentially other endocrine abnormalities.

The impact of uncontrolled diabetes on guinea pig health is profound and affects multiple body systems. Without adequate insulin function, glucose cannot enter cells properly to provide energy, despite high blood glucose levels. The body breaks down protein and fat for energy, leading to muscle wasting and weight loss despite increased appetite. Excess glucose spills into the urine, causing increased urination and compensatory increased thirst. Over time, chronic hyperglycemia damages blood vessels and nerves, potentially affecting eyes, kidneys, and other organs. Diabetic guinea pigs are also more susceptible to infections due to impaired immune function and may develop serious complications including diabetic ketoacidosis, a life-threatening emergency.

Diabetes mellitus in guinea pigs is a manageable condition, though it requires significant commitment from owners. Treatment focuses on dietary management, weight control, and in many cases, insulin therapy. Unlike dogs where diabetes management is well established, guinea pig diabetes treatment protocols are less standardized, and management can be challenging. The prognosis depends on the underlying cause, severity at diagnosis, presence of concurrent conditions, and the owner's ability to provide consistent daily care. Some guinea pigs achieve reasonable control and maintain acceptable quality of life for extended periods, while others prove more difficult to regulate. Working closely with an experienced exotic veterinarian is essential for optimizing outcomes.

The primary causes of diabetes mellitus in guinea pigs involve dysfunction of the pancreatic beta cells that produce insulin or resistance of body tissues to insulin's effects. Pancreatic disease, including pancreatitis, pancreatic tumors, or degenerative changes, can destroy or impair beta cells, leading to insufficient insulin production. Chronic obesity is strongly associated with diabetes development in guinea pigs, as excessive body fat promotes insulin resistance and places increased demands on the pancreas. Some guinea pigs appear to develop amyloid deposition in pancreatic islets similar to Type 2 diabetes in cats and humans, though this is not consistently documented. The interplay between insulin deficiency and insulin resistance likely varies among individual guinea pigs.

Genetic and hereditary factors appear to influence diabetes susceptibility in guinea pigs. Some studies and clinical observations suggest that certain guinea pig lines or breeds may have higher rates of diabetes, with Abyssinian guinea pigs sometimes cited as potentially predisposed. Familial clustering of diabetes has been noted in some guinea pig populations, suggesting heritable components. The specific genes involved in guinea pig diabetes susceptibility have not been identified, and more research is needed to characterize genetic factors. Individual variation in pancreatic function, fat metabolism, and insulin sensitivity likely has genetic underpinnings that affect diabetes risk.

Dietary and environmental factors play significant roles in diabetes development. High-calorie diets, excessive treats, and overfeeding promote obesity, the most significant modifiable risk factor for diabetes. Diets high in simple sugars and refined carbohydrates may contribute to insulin resistance and pancreatic stress. Inadequate exercise due to small enclosures or sedentary lifestyles promotes weight gain and metabolic dysfunction. Stress from various sources can affect glucose metabolism and may contribute to disease development. Poor overall husbandry practices that lead to obesity and chronic health problems increase diabetes risk.

Several risk factors increase the likelihood of diabetes development in guinea pigs. Obesity is the most significant modifiable risk factor, with overweight guinea pigs having substantially higher diabetes rates. Advancing age increases risk, as metabolic efficiency declines and years of dietary indiscretion accumulate. Female guinea pigs may have slightly higher rates, possibly related to reproductive hormone influences. Guinea pigs with other endocrine disorders, including adrenal disease or ovarian cysts, may have altered metabolic function that affects glucose regulation. Previous high-sugar or high-calorie diets, even if current diet is appropriate, may have caused lasting pancreatic damage.

The mechanism of diabetes involves dysregulation of glucose homeostasis with far-reaching metabolic consequences. Normally, insulin released after eating promotes glucose uptake into cells and storage as glycogen and fat. In diabetes, this system fails, and glucose accumulates in the bloodstream while cells are effectively starved of energy. The body responds by breaking down protein from muscles and fat from adipose tissue for alternative energy sources, producing weight loss and ketone bodies. High blood glucose exceeds the kidney's ability to reabsorb it, causing glycosuria and osmotic diuresis with increased urination. Dehydration stimulates increased drinking. If ketones accumulate excessively, diabetic ketoacidosis develops, a life-threatening condition requiring emergency treatment.

Early warning signs of diabetes mellitus in guinea pigs may be subtle and develop gradually over weeks to months. Increased water consumption is often one of the first signs noticed, as the guinea pig drinks more frequently or empties the water bottle faster than usual. Increased urination accompanies the increased drinking, with owners noticing wetter bedding, more frequent urination, or larger urine spots. Appetite may initially increase as the body attempts to compensate for inability to properly utilize nutrients. Subtle weight loss may occur despite good appetite, though this may be masked initially by food intake or not noticed until significant. These early signs may be attributed to weather changes, cage conditions, or minor issues rather than recognized as diabetes symptoms.

As diabetes progresses, more obvious symptoms emerge. Weight loss becomes evident despite maintained or increased appetite, with the guinea pig appearing thinner with prominent spine and hip bones. The classic triad of polyuria, polydipsia, and polyphagia, meaning increased urination, increased drinking, and increased appetite, becomes more pronounced. Muscle wasting contributes to a generally unthrifty appearance. Coat quality may decline, with fur becoming rough or dull. Energy levels typically decrease as the guinea pig's ability to utilize nutrients becomes increasingly impaired. Some guinea pigs develop cataracts, appearing as clouding of the normally clear lens of the eye.

Behavioral changes in diabetic guinea pigs reflect the metabolic derangements affecting their bodies. Lethargy and decreased activity become apparent as energy metabolism fails. The guinea pig may spend more time resting and show less interest in interaction, exploration, or play. Despite increased appetite initially, some guinea pigs eventually become picky eaters or show decreased interest in food as they become sicker. Changes in normal daily patterns may be noticed, with the guinea pig being less active during normal active periods. Interaction with cage mates may decrease. The normally curious and social guinea pig may become withdrawn and subdued.

Physical signs of diabetes provide important diagnostic information. Weight loss is often striking when diabetes is finally diagnosed, with some guinea pigs losing twenty percent or more of their body weight. The guinea pig may feel bony when handled, with reduced muscle mass and fat stores. Dehydration may be present, with dry mucous membranes, sunken eyes, and reduced skin turgor. The coat often looks unkempt. Cataracts, when present, are visible as white or bluish cloudiness in the pupils. Sweet or fruity odor to the breath may indicate ketosis. Depending on duration and severity, secondary complications including skin infections or other problems may be evident.

Symptom progression in untreated diabetes leads to increasingly severe metabolic compromise. Initial increased appetite eventually gives way to anorexia as the guinea pig becomes sicker. Weight loss becomes severe and potentially life-threatening. Dehydration worsens as urinary losses exceed intake. Ketone production may increase, leading toward diabetic ketoacidosis. Weakness and lethargy become profound. Secondary complications including infections develop more easily due to impaired immune function. Without treatment, diabetes in guinea pigs progresses to terminal illness over a variable time frame depending on the severity and rate of progression.

Emergency symptoms of diabetic ketoacidosis require immediate veterinary care. These include severe lethargy or collapse, complete refusal of food and water, rapid or labored breathing, sweet or acetone-like breath odor, vomiting or excessive drooling, severe weakness or inability to stand, and any rapid deterioration in a known diabetic guinea pig. Diabetic ketoacidosis is a medical emergency that is fatal without aggressive treatment. Guinea pig owners managing a diabetic pet should be aware of these warning signs and have an emergency plan in place. Any guinea pig showing the progressive signs of diabetes should receive prompt veterinary evaluation before the condition advances to crisis.

Diagnosis of diabetes mellitus in guinea pigs begins with thorough history and physical examination. The owner's report of increased drinking and urination, weight loss, and other classic signs raises suspicion for diabetes. Physical examination evaluates body condition, hydration status, and overall health. Weight is recorded and compared to previous weights if available. The eyes are examined for cataracts. Abdominal palpation may reveal hepatomegaly, which can occur with diabetes. The veterinarian will also look for signs of conditions that may complicate diabetes or present similarly. A complete history including diet, housing, and progression of symptoms helps characterize the condition.

Laboratory testing confirms the diagnosis of diabetes and evaluates for complications. Blood glucose measurement is fundamental, with persistent hyperglycemia, typically above two hundred milligrams per deciliter, supporting the diagnosis. A single elevated glucose must be interpreted carefully, as stress can elevate glucose in guinea pigs. Fructosamine levels, which reflect average blood glucose over the preceding few weeks, help differentiate true diabetes from stress hyperglycemia and are very useful when available. Urinalysis reveals glucose in the urine, which normally should not contain glucose, and may show ketones if ketoacidosis is developing. Complete blood count and biochemistry panel evaluate overall health, kidney and liver function, and identify concurrent conditions.

Additional diagnostics may be warranted depending on initial findings. If ketoacidosis is suspected, blood gas analysis and electrolyte evaluation guide emergency treatment. Ultrasound examination can evaluate the pancreas for tumors, pancreatitis, or structural abnormalities. Imaging also assesses the liver, which is commonly enlarged in diabetic guinea pigs. Evaluation for concurrent endocrine conditions such as adrenal disease or ovarian cysts may be indicated if clinical signs suggest multiple problems. In some cases, insulin levels may be measured to help characterize whether diabetes is primarily from insulin deficiency or resistance, though interpretation in guinea pigs is challenging.

Differential diagnosis for guinea pigs presenting with polyuria, polydipsia, and weight loss includes several conditions. Kidney disease causes similar symptoms and may coexist with or result from diabetes. Urinary tract infections can cause increased urination. Hyperthyroidism, though rare in guinea pigs, affects metabolism. Other causes of weight loss including dental disease, GI problems, cancer, and chronic infections must be considered. The combination of persistent hyperglycemia, glycosuria, and typical clinical signs confirms diabetes. Fructosamine elevation helps confirm chronic hyperglycemia rather than transient stress-related glucose elevation. Comprehensive evaluation identifies concurrent conditions that affect treatment planning.

Dietary management forms the foundation of diabetes treatment in guinea pigs and may be sufficient for mild cases. The diet should emphasize unlimited high-quality grass hay, which is high in fiber and low in simple sugars, supporting slow, steady glucose release and gut health. Pellets should be limited to small measured amounts of high-quality timothy-based formula. Fresh vegetables should be selected for lower sugar content, emphasizing leafy greens and avoiding high-sugar items like carrots and fruits. All treats, particularly commercial sugary treats, should be eliminated. Regular feeding schedules help maintain consistent glucose levels. Weight reduction in obese guinea pigs through controlled caloric intake improves insulin sensitivity and may reduce or eliminate the need for insulin in some cases.

Insulin therapy is required for many diabetic guinea pigs, particularly those with significant insulin deficiency. The goal is to provide enough exogenous insulin to maintain blood glucose within a reasonable range while avoiding dangerous hypoglycemia. Insulin protocols for guinea pigs are not standardized, and treatment typically begins with conservative doses that are gradually adjusted based on response. Various insulin types have been used in guinea pigs, with veterinarians selecting based on experience and availability. Insulin is typically administered by injection once or twice daily, and owners must be trained in proper technique. Home blood glucose monitoring may be recommended to guide dose adjustments and detect hypoglycemia.

Supportive care addresses complications and maintains overall health. Dehydrated guinea pigs may need fluid supplementation initially, either subcutaneous fluids at home or intravenous fluids for severely affected patients. Vitamin C supplementation supports immune function and overall health. If the guinea pig is not eating adequately, syringe feeding ensures nutritional intake and gut function. Any concurrent infections are treated with guinea pig-safe antibiotics. Cataracts, once developed, do not resolve but rarely require treatment unless causing complications. Environmental optimization with appropriate temperature, clean housing, and low stress supports recovery and ongoing health.

Management of diabetic ketoacidosis requires emergency intervention. This life-threatening condition necessitates hospitalization with aggressive intravenous fluid therapy to correct dehydration and electrolyte imbalances. Insulin therapy is initiated, often with short-acting insulin initially, to reduce blood glucose and halt ketone production. Electrolytes, particularly potassium, must be monitored and supplemented carefully. Blood glucose is monitored frequently, with adjustments to fluids and insulin based on response. Concurrent conditions including infections are treated. Once stable, the guinea pig transitions to long-term management protocols. DKA carries a guarded prognosis even with aggressive treatment.

Long-term management requires owner commitment and veterinary partnership. Daily insulin administration, when required, must occur consistently at appropriate times. Blood glucose monitoring, whether at home or through regular veterinary visits, guides treatment adjustments. Diet must be strictly controlled permanently. Weight should be tracked and maintained at healthy levels. Regular veterinary examinations monitor for complications and overall disease control. Communication between owner and veterinarian should be ongoing, with guidance on how to handle various situations including suspected hypoglycemia or illness. Treatment protocols may need adjustment over time based on the guinea pig's response and changing needs.

Prognosis and quality of life considerations are important discussions. Some guinea pigs achieve reasonable diabetic control and maintain good quality of life for months to years. Others prove difficult to regulate despite dedicated efforts. The commitment required for diabetic guinea pig care is substantial, including daily treatments, dietary vigilance, monitoring, and frequent veterinary visits. Owners should consider their ability to provide this level of care long-term. Quality of life should be honestly assessed, with the guinea pig's wellbeing prioritized over treatment goals. If diabetes cannot be adequately controlled or quality of life declines significantly despite treatment, compassionate end-of-life decisions may need to be considered.

The concept of recovery for diabetes mellitus differs from acute conditions because diabetes is typically a chronic condition requiring lifelong management rather than a curable disease. The initial stabilization period, during which treatment is initiated and the guinea pig's condition improves from the presenting state, typically spans two to four weeks. During this time, the guinea pig ideally shows improving appetite, stabilizing weight, decreasing thirst and urination toward more normal levels, and increasing energy. Achieving stable glycemic control may take several weeks to months of treatment adjustments. Some guinea pigs respond well and achieve stable management relatively quickly, while others require extended periods of fine-tuning.

Ongoing management replaces traditional recovery, with daily care becoming routine. Owners develop proficiency in medication administration, monitoring, and recognizing both good and concerning signs. The guinea pig ideally reaches a stable state with acceptable blood glucose control, maintained body weight, reasonable activity levels, and good appetite. This stable state represents the ongoing goal rather than a return to pre-diabetic normalcy. Regular veterinary monitoring continues, with frequency depending on stability, typically every one to three months for examinations and glucose assessment. Adjustments to treatment may be needed periodically based on changing needs.

Prognosis for diabetic guinea pigs varies considerably based on multiple factors. Guinea pigs diagnosed early with mild disease and those responding well to dietary management alone often have better long-term outcomes. Those with severe disease, ketoacidosis at presentation, or poor response to insulin face more guarded prognosis. Concurrent conditions including kidney disease, which may develop secondary to diabetes, affect outcomes. The owner's ability to provide consistent, dedicated care significantly influences prognosis. With optimal management, some diabetic guinea pigs live comfortably for one to two years or more after diagnosis, though this varies widely.

Quality of life assessment should be ongoing throughout management. Guinea pigs with well-controlled diabetes should display good appetite, reasonable activity levels, stable weight, and normal interactions with their environment and companions. Signs that quality of life may be declining include persistent weight loss despite treatment, increasing complications, decreasing interest in food or surroundings, or visible distress from treatments. Owners should periodically and honestly evaluate whether their guinea pig is having more good days than bad. Veterinary guidance helps interpret signs and make appropriate decisions. When quality of life cannot be maintained at an acceptable level, humane euthanasia may be the kindest option.

Primary prevention of diabetes mellitus focuses on maintaining healthy weight and appropriate diet throughout the guinea pig's life. Obesity is the most significant modifiable risk factor for diabetes, and preventing obesity is the most effective preventive measure. Guinea pigs should be fed appropriate portions rather than free-choice access to high-calorie foods. Pellets should be limited to approximately one-eighth cup per guinea pig daily rather than filled to overflowing. High-sugar treats, including many commercial guinea pig treats, should be avoided or given very sparingly. Fresh vegetables should emphasize leafy greens rather than high-sugar options like carrots and fruits. Understanding that a round guinea pig is not a healthy guinea pig helps owners maintain appropriate body condition.

Proper diet composition supports metabolic health. Unlimited high-quality grass hay should form the foundation of the diet, providing fiber for digestive and dental health without excess calories or sugars. Timothy, orchard grass, and oat hay are appropriate choices for adult guinea pigs, with alfalfa reserved for young, pregnant, or nursing animals. Pellets should be timothy-based and high in fiber. Fresh vegetables provide vitamin C and variety while being selected for nutritional value rather than sugar content. Clean, fresh water should always be available. This dietary foundation supports healthy weight, stable blood glucose, and overall metabolic health.

Exercise and environmental enrichment help maintain healthy weight and metabolic function. Guinea pigs should have enclosures large enough to allow movement and activity. Daily floor time in safe, supervised areas provides exercise opportunities. Environmental enrichment including tunnels, hideaways, and foraging opportunities encourages natural behaviors and activity. Multiple guinea pigs housed together engage in social interaction and play. Avoiding sedentary lifestyles by providing space, stimulation, and opportunity for movement contributes to overall metabolic health.

Regular health monitoring enables early detection if problems develop. Annual veterinary examinations provide baseline health assessments. Body weight should be monitored regularly at home, with any unexplained changes prompting veterinary evaluation. Owners should observe their guinea pigs' eating, drinking, and urination habits, noting any changes. Early signs of diabetes, particularly increased thirst and urination, should prompt veterinary consultation. Catching diabetes early, before severe metabolic derangement occurs, allows intervention when treatment is most likely to be successful.

For guinea pigs potentially at higher risk, such as those with family history of diabetes or of breeds suggested to have higher susceptibility, more vigilant monitoring may be warranted. Maintaining strict dietary control from a young age is particularly important. Regular veterinary examinations may be scheduled more frequently. Being aware of early diabetes signs and seeking prompt evaluation if they develop enables early intervention. While genetic predisposition cannot be changed, environmental and dietary factors can be optimized to reduce the likelihood of diabetes developing.

Daily management of diabetic guinea pigs requires consistent routines and careful attention to treatment protocols. If insulin is prescribed, it must be administered at the same times each day, typically once or twice daily as directed. Proper insulin storage, handling, and injection technique must be followed precisely. Feeding should occur in coordination with insulin timing as directed by the veterinarian. Blood glucose monitoring, if recommended for home testing, should be performed consistently and results recorded. Observing the guinea pig throughout the day for signs of good control or concerning changes becomes part of normal routine. Keeping detailed records of treatments, blood glucose values, eating, drinking, and any observations helps track trends and informs veterinary discussions.

Dietary management must be strict and consistent. Measured amounts of appropriate pellets should be offered at scheduled times rather than leaving unlimited access. Hay should always be available in abundant supply. Fresh vegetables selected from low-sugar options are offered daily. All high-sugar foods, treats, and inappropriate items must be completely eliminated. Family members and others interacting with the guinea pig must understand and comply with dietary restrictions. Even small amounts of inappropriate foods can disrupt glucose control. Water intake should be monitored but not restricted, as diabetic guinea pigs need adequate hydration.

Environmental optimization supports the diabetic guinea pig's health and wellbeing. The cage should allow adequate movement while being safe and secure. Temperature should be maintained in a comfortable range, as stress from temperature extremes affects glucose regulation. Clean, dry bedding changed frequently is important for hygiene and monitoring urine output. A consistent, low-stress environment helps maintain stable metabolic function. Cage mates can provide important social support, and diabetic guinea pigs generally should not be isolated unless there are specific concerns about food stealing or aggression.

Monitoring for complications is an ongoing aspect of management. Watch for signs of hypoglycemia, including sudden weakness, trembling, disorientation, or collapse, which requires immediate sugar administration and veterinary guidance. Monitor for increasing thirst and urination that might indicate worsening control. Check regularly for signs of infection, particularly skin problems and urinary tract symptoms. Assess body condition and weight regularly. Watch for development of cataracts. Any changes in behavior, appetite, or activity level should be noted and discussed with the veterinarian. Emergency contact information should be readily available.

Veterinary partnership remains essential throughout the guinea pig's life with diabetes. Regular examinations, typically every one to three months, assess overall health and diabetic control. Blood glucose and fructosamine testing guides treatment adjustments. The veterinarian can help troubleshoot problems, adjust protocols, and provide guidance for various situations. Open communication about challenges, concerns, and observations helps optimize care. As the guinea pig ages or if complications develop, treatment approaches may need modification. The veterinary team can also provide support for difficult decisions about quality of life and end-of-life care when needed.

Diabetes mellitus has been suggested to occur more frequently in certain guinea pig breeds, though definitive breed-specific prevalence data is limited. Abyssinian guinea pigs have been cited in some sources as potentially having higher susceptibility to diabetes, though this is not conclusively established. The Abyssinian's characteristic rosette coat pattern has no known direct connection to metabolic function, and any increased susceptibility might relate to genetic factors that happen to be more common in this breed population. Any guinea pig of any breed can develop diabetes, and breed alone should not determine the level of monitoring or concern.

Beyond specific breeds, certain guinea pig characteristics and situations increase diabetes risk. Obesity is the strongest risk factor regardless of breed, making any overweight guinea pig at elevated risk. Older guinea pigs face higher diabetes rates than younger animals. Guinea pigs with family history of diabetes may have inherited predisposition. Those fed inappropriate high-calorie, high-sugar diets have increased risk. Guinea pigs with other endocrine disorders may have altered metabolic function affecting glucose regulation. Sedentary guinea pigs with limited exercise opportunity may develop insulin resistance more readily. These factors interact with any breed predisposition that may exist.

Breeder and owner awareness supports diabetes prevention across all breeds. Breeders should maintain health records and avoid reproducing animals with diabetes or strong family history of the condition. Appropriate nutrition and weight management should be emphasized from weaning onward. New owners should be educated about proper diet, appropriate body condition, and signs of diabetes. Regular veterinary care throughout life enables early detection if problems develop. Understanding that any guinea pig can develop diabetes encourages universal application of preventive measures rather than false confidence based on breed. Early recognition and treatment offer the best outcomes regardless of breed background.

Several conditions commonly co-occur with diabetes mellitus in guinea pigs or share similar clinical features. Obesity is both a primary risk factor for and common concurrent finding with diabetes. Hepatic lipidosis, fatty liver disease, can develop in association with diabetes and metabolic dysregulation. Kidney disease may occur secondary to chronic hyperglycemia damaging kidney tissues, or may coexist as a separate age-related condition. Cataracts develop in many diabetic guinea pigs due to glucose accumulation in the lens. Urinary tract infections occur more readily in diabetic guinea pigs due to glucose in urine providing bacterial nutrients and impaired immune function. Other endocrine disorders including adrenal disease and ovarian cysts may coexist.

Conditions with similar symptoms require differentiation from diabetes. Chronic kidney disease causes increased thirst, urination, and weight loss similar to diabetes. Hyperthyroidism, though rare in guinea pigs, affects metabolism and could cause similar signs. Dental disease causing difficulty eating can result in weight loss. Cancer and chronic infections cause weight loss and general decline. Pyometra in intact female guinea pigs causes increased drinking and systemic illness. Laboratory testing including blood glucose, fructosamine, and comprehensive blood work helps differentiate these conditions from diabetes and identifies when multiple problems coexist.

Potential complications of diabetes mellitus can be serious and affect multiple body systems. Diabetic ketoacidosis is a life-threatening acute complication requiring emergency treatment. Chronic complications include cataracts, which develop in a significant percentage of diabetic guinea pigs. Kidney damage from chronic hyperglycemia can progress to chronic kidney disease. Increased infection susceptibility affects skin, urinary tract, and other body systems. Peripheral neuropathy, nerve damage from chronic diabetes, may occur though it is less well characterized in guinea pigs than in humans. Complications from treatment, particularly hypoglycemia from insulin overdose, represent a significant management concern. Understanding potential complications guides monitoring and helps owners recognize problems early.