Health

The breed is prone to spinal problems, especially intervertebral disk disease (IVDD), due in part to an extremely long spinal column and short rib cage. The risk of injury may be worsened by obesity, jumping, rough handling, or intense exercise, which place greater strain on the vertebrae. About 20–25% of dachshunds will develop IVDD. Dachshunds with a number of calcified intervertebral discs at a young age have a higher risk of developing disc disease in later life. In addition, studies have shown that development of calcified discs is highly heritable in the breed. An appropriate screening programme for IVDD has been identified by Finnish researchers and a UK IVDD screening programme has been developed for breeders with the aim to reduce prevalence of spinal problems.

Treatment consists of combinations of crate confinement and courses of anti-inflammatory medications (steroids and non-steroidal anti-inflammatory drugs like carprofen and meloxicam), or chronic pain medications, like tramadol. Serious cases may require surgery to remove the troublesome disk contents. A dog may need the aid of a cart to get around if paralysis occurs.

A minimally invasive procedure called "percutaneous laser disk ablation" has been developed at the Oklahoma State University Veterinary Hospital. Originally, the procedure was used in clinical trials only on dachshunds that had suffered previous back incidents. Since dachshunds are prone to back issues, the goal is to expand this treatment to dogs in a normal population.

In addition to back problems, the breed is prone to patellar luxation where the kneecap can become dislodged. Dachshunds may also be affected by osteogenesis imperfecta (brittle bone disease). The condition seems to be mainly limited to wire-haired Dachshunds, with 17% being carriers. A genetic test is available to allow breeders to avoid breeding carriers to carriers. In such pairings, each puppy will have a 25% chance of being affected.

In some double dapples, there are varying degrees of vision and hearing loss, including reduced or absent eyes. Not all double dapples have problems with their eyes and/or ears, which may include degrees of hearing loss, full deafness, malformed ears, congenital eye defects, reduced or absent eyes, partial or full blindness, or varying degrees of both vision and hearing problems; but heightened problems can occur due to the genetic process in which two dapple genes cross, particularly in certain breeding lines. Dapple genes, which are dominant genes, are considered "dilution" genes, meaning whatever color the dog would have originally carried is lightened, or diluted, randomly; two dominant "dilution" genes can cancel each other out, or "cross", removing all color and producing a white recessive gene, essentially a white mutation. When occurring genetically within the eyes or ears, this white mutation can be detrimental to development, causing hearing or vision problems.

Other dachshund health problems include hereditary epilepsy, granulomatous meningoencephalitis, dental issues, Cushing's syndrome, thyroid and autoimmune problems, various allergies and atopies, and various eye conditions including cataracts, glaucoma, progressive retinal atrophy, corneal ulcers, nonucerative corneal disease, sudden acquired retinal degeneration, and cherry eye. Dachshunds are also 2.5 times more likely than other breeds of dogs to develop patent ductus arteriosus, a congenital heart defect. Dilute color dogs (Blue, Isabella, and Cream) are very susceptible to color dilution alopecia, a skin disorder that can result in hair loss and extreme sensitivity to sun. Since the occurrence and severity of these health problems is largely hereditary, breeders are working to eliminate these.

Factors influencing the litter size of puppies and the proportion of stillborn puppies per litter were analyzed in normally sized German dachshunds. The records analyzed contained data on 42,855 litters. It was found that as the inbreeding coefficient increased, litter size decreased and the percentage of stillborn puppies increased, thus indicating inbreeding depression. It was also found that young and older dams had smaller litter sizes and more stillborn puppies than middle-aged dams.

Health

The breed is predisposed to conditions found in many breeds, such as abdominal hernias. Westie puppies may be affected by Craniomandibular osteopathy, a disease also known "lion jaw", and is sometimes also referred to as "westie jaw". The disease is an autosomal recessive condition and so a puppy can only be affected by it if both its parents are carriers of the faulty gene. The condition appears across many breeds, including several different types of terrier, as well as other unrelated breeds such as the Great Dane. It typically appears in dogs under a year old, and can cause problems for the dog to chew or swallow food. Radiographic testing can be conducted to diagnose the condition, in which the bones around the jaw thicken; additionally the blood may show increased calcium levels and enzyme levels.

Westies are prone to skin disorders. About a quarter of the breed surveyed are affected by atopic dermatitis, a heritable chronic allergic skin condition. A higher proportion of males are affected compared to females. There is an uncommon but severe breed-specific skin condition that may affect West Highland White Terriers affecting both juveniles and adult dogs. This condition is called Hyperplastic Dermatosis. Affected dogs can suffer from red hyperpigmentation, lichenification and hair loss. In the initial stages, this condition can be misdiagnosed as allergies or less serious forms of dermatitis.

An inherited genetic problem that exists in the breed is globoid cell leukodystrophy. It is not breed specific, and can appear in Cairn Terriers and other breeds including Beagles and Pomeranians. It is a neurological disease where the dog lacks an enzyme called galactosylceramidase. The symptoms are noticeable as the puppy develops, and can be identified by the age of 30 weeks. Affected dogs will have tremors, muscle weakness, and trouble walking. Symptoms will slowly increase until limb paralysis begins to occur. Due to it being a hereditary condition, it is recommended for owners to avoid breeding affected animals in order to eliminate it from the breed. Another genetic condition that affects the breed is "White dog shaker syndrome". As this condition is most commonly found in Westies and in Maltese, the condition was originally thought to be connected to the genes for white coats, however the same condition has since been found in other non-white breeds including the Yorkshire Terrier and the Dachshund. The condition typically develops over one to three days resulting in tremors of the head and limbs, ataxia and hypermetria. Affected males and females can be affected for different lengths of time, with symptoms in females lasting for between four to six weeks, while males can be affected the rest of its life.

Other less common conditions which appear in the breed include hydroxyglutaric aciduria, which is where there are elevated levels of alpha-Hydroxyglutaric acid in the dog's urine, blood plasma, and spinal fluid. It can cause seizures, muscle stiffness, and ataxia, but is more commonly found in Staffordshire Bull Terriers. A degeneration of the hip-joint, known as Legg–Calve–Perthes syndrome also occurs to the breed. However the chances of this condition occurring are much higher in some other breeds, such as the Australian Shepherd or the Miniature Pincher.