The adult Havanese, typically considered fully mature by eighteen months to two years of age, enters a period of relative stability that can last well into the dog's tenth or eleventh year. This extended prime reflects the breed's notable longevity among companion dogs, and it represents the best opportunity for owners to establish and maintain the health practices that will support their Havanese through a long, active life. Annual veterinary examinations form the cornerstone of adult health maintenance, providing an opportunity to detect subtle changes before they develop into significant problems.
During annual wellness visits, the veterinarian will perform a thorough physical examination that includes checking the heart, lungs, abdomen, lymph nodes, eyes, ears, skin, and musculoskeletal system. Bloodwork panels that include a complete blood count, chemistry profile, and thyroid screening establish baseline values that become increasingly valuable as the dog ages. Urinalysis and fecal examinations round out the picture, screening for kidney function, urinary tract health, and intestinal parasites. Keeping a consistent annual schedule makes it far easier to spot trends that might indicate early disease.
Vaccination during the adult years shifts from the intensive puppy series to a maintenance schedule. Core vaccines are typically boosted every one to three years depending on the product used and the veterinarian's protocol, while non-core vaccines are administered based on the dog's lifestyle and regional disease risk. Heartworm prevention and flea and tick control should continue year-round in most regions, as lapses in protection can leave the dog vulnerable to serious parasitic diseases. Discussing the appropriate preventive protocol with your veterinarian ensures that your Havanese receives the protection it needs without unnecessary treatments.
The Havanese is predisposed to several breed-specific health conditions that warrant monitoring during the adult years. Luxating patella, a condition in which the kneecap slips out of its normal groove, is relatively common in the breed and can range from mild and intermittent to severe enough to require surgical correction. Progressive retinal atrophy and cataracts are hereditary eye conditions that can affect vision, making annual ophthalmologic screening advisable. Liver shunts, hip dysplasia, and Legg-Calve-Perthes disease are less common but documented in the breed. Awareness of these conditions and proactive screening allow for early intervention when treatment is most effective.