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

Pugs are prone to brachycephalic airway obstructive syndrome (BAOS) which causes respiratory distress in short-snouted breeds. Pugs have elongated palates. When excited, they are prone to "reverse sneezing" which causes them to quickly (and seemingly laboriously) gasp and snort. The veterinary name for this is pharyngeal gag reflex and it is caused by fluid or debris getting caught under the palate and irritating the throat or limiting breathing. Reverse sneezing episodes are usually not harmful, and massaging the dog's throat or covering its nose in order to make it breathe through its mouth can often shorten a sneezing fit.

Some pugs are also born with stenotic nares (pinched nostrils) which can inhibit their breathing. In serious cases, it makes breathing even more difficult and puts added pressure on the larynx. In some cases, the dog could pass out from blocked airways. If this happens, one should inquire with their veterinarian whether or not surgery is needed to open the nostrils.

Protruding eyes and eye prolapse is a common problem among pugs and other brachycephalic breeds and can be caused by a trauma to the head or neck. While the eye can usually be pushed back into its socket by the owner or by a vet, veterinary attention is usually advisable. If the prolapse happens on a regular basis, the pug might require surgery.

Pugs have many wrinkles in their faces, so owners will often clean inside the creases to avoid irritation and infection. If this is not done, the dog may develop a condition known as skin fold dermatitis.

An abnormal formation of the hip socket, known as hip dysplasia, affected nearly 64% of pugs in a 2010 survey performed by the Orthopedic Foundation for Animals; the breed was ranked the second worst-affected by this condition out of 157 breeds tested.

Pugs are one of several breeds that are more susceptible than other dogs to demodectic mange, also known as "demodex". This condition is caused when parasitic mites, that are often present in a dog's skin without causing symptoms, are allowed to do damage because their host has a weakened immune system. It is a problem for many young pugs, although not usually a major one, and is easily treatable, but some are especially susceptible and present with a systemic form of the condition. This vulnerability is thought to be genetic and breeders will avoid producing puppies from adults who have this condition.

In 2008, an investigative documentary carried out by the BBC found significant inbreeding between pedigree dogs, with a study by Imperial College, London, showing that the 10,000 pugs in the UK were so inbred that their gene pool was the equivalent of only 50 individuals.

Pugs can suffer from necrotizing meningoencephalitis (NME), also known as pug dog encephalitis (PDE), an inflammation of the brain and meninges. NME also occurs in other small dogs, such as the Yorkshire Terrier, Maltese, and Chihuahua. There is no known cure for NME, which is believed to be an inherited disease. Dogs usually die or have to be put to sleep within a few months of onset, which, in those susceptible to this condition, is mostly between six months and three years of age.

This breed, along with other brachycephalic dogs (e.g., boxers, bulldogs), are also prone to hemivertebrae. The curled tail of a British bulldog is an example of a hemivertebrae, but when it occurs not in the coccygeal vertebrae but in other areas of the spine, it can cause paralysis. The condition occurs when two parts of a spinal vertebra do not fuse properly while a young pug is still growing, resulting in an irregularly shaped spinal cavity which can put pressure on the spinal cord.