Pekingese are generally healthy, but like all breeds, they're prone to certain health conditions. Not all Pekes will get any or all of these diseases, but it's important to be aware of them if you're considering this breed.
If you're buying a puppy, find a good breeder who will show you health clearances for both your puppy's parents. Health clearances prove that a dog has been tested for and cleared of a particular condition. In Pekes, you should expect to see health clearances from the Orthopedic Foundation for Animals (OFA) for hip dysplasia (with a score of fair or better), elbow dysplasia, hypothyroidism, and von Willebrand's disease; from Auburn University for thrombopathia; and from the Canine Eye Registry Foundation (CERF) certifying that eyes are normal. You can confirm health clearances by checking the OFA web site (offa.org).
Patellar Luxation: Also known as "slipped stifles," this is a common problem in small dogs. It is caused when the patella, which has three parts--the femur (thigh bone), patella (knee cap), and tibia (calf)--is not properly lined up. This causes lameness in the leg or an abnormal gait, sort of like a skip or a hop. It is a condition that is present at birth although the actual misalignment or luxation does not always occur until much later. The rubbing caused by patellar luxation can lead to arthritis, a degenerative joint disease. There are four grades of patellar luxation, ranging from grade I, an occasional luxation causing temporary lameness in the joint, to grade IV, in which the turning of the tibia is severe and the patella cannot be realigned manually. This gives the dog a bowlegged appearance. Severe grades of patellar luxation may require surgical repair.
Brachycephalic Syndrome: The full name for the condition is brachycephalic airway obstruction syndrome (BAOS). This condition occurs in those breeds that have been selectively bred to have a shortened face. These dogs have some problem with breathing from the time they are born. The exaggerated features that occur with their anatomy include an elongated and fleshy soft palate, narrowed nostrils, changes to the larynx, and a relatively small trachea. Problems vary according to the severity of the disease. Most brachycephalic dogs snuffle and snort to some degree. Some have no other problems; others have increasingly noisy breathing, coughing, gagging, fainting, and collapsing episodes and a decreased tolerance for exercise. Overheating is especially dangerous for these breeds because panting causes more swelling and narrowing of the airway, increasing the dogs' anxiety. Treatment can include keeping dog from becoming overweight, corticosteroids for short term relief of airway inflammation, and surgical shortening of the soft palate if it is elongated.
Cataracts: A cataract is an opacity on the lens of the eye that causes difficulty in seeing. The eye(s) of the dog will have a cloudy appearance. Cataracts usually occur in old age and sometimes can be surgically removed to improve the dog's vision.
Cleft Palate: The palate is the roof of the mouth and separates the nasal and oral cavities. It is made up of two parts, hard and soft. A cleft palate has a slit that runs bilaterally or unilaterally and can range in size from a small hole to a large slit. A cleft palate can affect both the hard and soft palate separately and together and may cause a cleft lip. Puppies can be born with cleft palates, or a cleft palate can occur from an injury. Cleft palates are fairly common in dogs, but many puppies born with a cleft palate do not survive or are euthanized by the breeder. The only treatment for a cleft palate is surgery to close the hole, although not all dogs with a cleft palate require the surgery. It is important to get a diagnosis and treatment recommendation from your veterinarian.
Cryptorchidism: Cryptorchidism is a condition in which one or both testicles on the dog fail to descend and is common in small dogs. Testicles should descend fully by the time the puppy is 2 months old. If a testicle is retained, it is usually nonfunctional and can become cancerous if it is not removed. The treatment that is suggested is to neuter your dog. When the neutering takes place, a small incision is made to remove the undescended testicle(s); the normal testicle, if any, is removed in the regular manner.
Distichiasis: This condition occurs when an additional row of eyelashes (known as distichia) grow on the oil gland in the dog's eye and protrude along the edge of the eyelid. This irritates the eye, and you may notice your Aussie squinting or rubbing his eye(s). Distichiasis is treated surgically by freezing the excess eyelashes with liquid nitrogen and then remove them. This type of surgery is called cryoepilation and is done under general anesthesia.
Ectopic Cilia: An abnormality of eyelash growth in which extra eyelashes grow through the eyelid to the inside. One or more ectopic cilia may be present. Clinical signs of discomfort vary according to the number of abnormal cilia and whether they are fine or coarse. This type of eyelash abnormality is particularly irritating to the eye and more likely to cause corneal ulcers. Treatment consists of treating any corneal ulcers that have occurred with antibiotics and surgical removal of the aberrant follicle.
Entropion: This defect, which is usually obvious by six months of age, causes the eyelid to roll inward, irritating or injuring the eyeball. One or both eyes can be affected. If your Pekingese has entropion, you may notice him rubbing at his eyes. The condition can be corrected surgically if he doesn't outgrow it by adulthood.
Fold Dermatitis: A skin infection caused by folds in the skin in which rubbing occurs or moisture gets trapped. It is more commonly found in breeds that have folds in the skin such as Pekingese. The signs of fold dermatitis are redness, sores, and odor, and the dog can be affected on the tail, face, lips, vulvar folds, and any other fold on the body. The treatment for fold dermatitis varies depending on the area affected, but it can include surgical removal of the folds or amputation of the tail in the case of fold dermatitis on the tail. It can also include topical antibiotic ointments. The best means of treatment is to properly maintain your dog's coat to prevent the condition.
Hydrocephalus: Occurs when the cerebrospinal fluid (CSF) in the brain accumulates because of a congenital defect, obstruction, or the result of perinatal trauma, placing pressure on the brain. This usually occurs in young dogs under the age of 18 months and older dogs that are more than 6 years old. If hydrocephalus is left untreated, the dog will die. Treatment consists of medical treatment and surgery where either the obstruction is removed or a shunt is inserted.
Keratoconjunctivitis Sicca: Keratoconjunctivitis sicca, or dry eye, is caused when the eyes don't produce enough tears to stay moist. Your vet can perform a Schirmer tear test to diagnose dry eye, which can be controlled with medication and special care. This eye condition requires life-long therapy and care.
Mitral Valve Disease: This defect in the mitral valve of the heart causes a backup of blood into the left atrium, known as mitral regurgitation. This causes the heart to be less efficient at pumping the blood. It is the most common acquired cardiac disease, affecting more than one-third of dogs over ten years of age. There are several breeds that are genetically predisposed to acquire the condition at a much younger age, and the Pekingese is one of them. If your veterinarian hears a heart murmur, your Peke should be evaluated by a veterinary cardiologist.
Progressive Retinal Atrophy (PRA): This is a degenerative eye disorder that eventually causes blindness from the loss of photoreceptors at the back of the eye. PRA is detectable years before the dog shows any signs of blindness. Fortunately, dogs can use their other senses to compensate for blindness, and a blind dog can live a full and happy life. Just don't make it a habit to move the furniture around. Reputable breeders have their dogs' eyes certified annually by a veterinary ophthalmologist and do not breed dogs with this disease.
Exposure Keratopathy Syndrome: This syndrome can be caused by a number of factors such as exophthalmos, which is a protrusion of the eyeball, macroblepharon, which is a large eyelid opening, and lagophthalmos, which is an inability to completely close the eyelid. These factors cause the cornea to be exposed, resulting in an inability to blink properly and the easy evaporation of tears. The syndrome can lead to corneal ulcers, and a pigmentation of the cornea that may cause vision impairment. Signs are generally red eyes, increased tears, and pawing at the eyes. Treatment for Exposure Keratopathy Syndrome is usually various surgeries, but tear substitutes have been used as a temporary treatment.
Intervertebral Disk Disease: The spinal cord is surrounded by the vertebral column, and between the bones of the vertebral column are intervertebral discs that work as shock absorbers and allow normal movement of the vertebrae. The discs are made of two layers, an outer fibrous layer and an inner jelly-like layer. Intervertebral disc disease occurs when the jelly like inner layer protrudes into the spinal canal and pushes against the spinal cord. Compression of the spinal cord may be minimal, causing neck or back pain, or it can be severe, causing loss of sensation, paralysis, and lack of bowel or bladder control. The damage done by the spinal compression may be irreversible. Treatment is based on several factors, including location, severity, and length of time between injury and treatment. Confining the dog may be of some use, but surgery is often needed to relieve pressure on the spinal cord. Surgery is not always successful.