Eye proptosis is a condition resulting in forward displacement and entrapment of the eye from behind by the eyelids. It is a common result of head trauma in dogs. Most commonly it occurs in brachycephalic (short nosed) breeds.
With two rescue dogs brought to Canada being diagnosed with what are believed to be the country’s first cases of dog flu, dog owners are being warned to keep an eye out for the highly contagious virus.
Brachycephalic airway obstructive syndrome is a condition of brachycephalic (short-nosed) dogs, characterized by the presence of stenotic nares, elongated soft palate, narrow trachea, collapsed larynx, and everted laryngeal saccules. Signs include difficult and noisy breathing. Surgical options are available.
Aspergillosis* is a fungal disease that in dogs is caused primarily by Aspergillus fumigatus. Infection is usually in the nasal cavity. Typical signs in dogs include sneezing, nasal discharge, bleeding from the nose, and ulcerations of the nose.
What to look for: Thankfully, rabies is not as common today as it once was due to the development of vaccinations, but it is still possible for your dog to become infected with rabies even if he has received his shots. Symptoms of rabies include heavy, thick drool and aggressive behavior.
Certain breeds are prone to specific cancers. Boxers, Boston terriers and Golden Retrievers are among the breeds that most commonly develop mast cell tumors or lymphoma, while large and giant breeds like Great Danes and Saint Bernards are much more likely to suffer from bone cancer than smaller breeds.
Canine glaucoma is an increase of pressure within the eye. It is a common condition in dogs. It can be caused by abnormal development of the drainage angle of the eye, lens luxation, uveitis, or cancer. Cocker Spaniels, Poodles, and Basset Hounds are predisposed.
Humans can also spread the virus by touching a dog or item contaminated with the virus and then transferring that to other dogs, says Weese, which is why it’s so important for dog owners to wash their hands after contact with a sick animal.
Rabies (hydrophobia) is a fatal viral disease that can affect any mammal, although the close relationship of dogs with humans makes canine rabies a zoonotic concern. Vaccination of dogs for rabies is commonly required by law. Please see the article dog health for information on this disease in dogs.
Jump up ^ Braddock JA, Church DB, Robertson ID (2004). “Selegiline Treatment of Canine Pituitary-Dependent Hyperadrenocorticism” (PDF). Australian Veterinary Journal. Archived from the original (PDF) on 29 November 2010. Retrieved 8 April 2011. (PDF)
Thyroid cancer* is rare and usually nonproductive in dogs (unlike in cats, in which it causes hyperthyroidism). One-third of thyroid tumors are small benign adenomas; the rest are malignant carcinomas, usually large and invasive.
Dental disease is very common. Calculus is the most obvious sign, but gingivitis progressing to periodontitis is what results in tooth loss. Treatment involves scaling and polishing of the teeth under general anesthesia and treatment of any periodontal disease. Prevention is very important and can be accomplished through the use of special diets or treats, brushing, and plaque prevention gels.
Cryptosporidium can cause profuse, watery diarrhea with cramping, abdominal pain, and nausea in both animals and people. Illness in people is usually self-limiting and lasts only 2-4 days, but can become severe in people with weakened immune systems.
Prostate disease* in dogs includes benign prostatic hyperplasia (BPH), prostatitis (infection of the prostate), cancer, and cysts and abscesses. BPH is the most common and is found in older intact (not neutered) dogs. Signs include blood in the urine and straining to urinate and defecate. Castration is the treatment of choice. Prostatis can be associated with BPH. Bacteria causing prostatitis include E. coli, Staphylococcus spp., Streptococcus spp., and Mycoplasma spp.
Liver failure* is common. Signs include vomiting, loss of appetite, weight loss, and jaundice. Causes include bacterial or viral infection, toxic insult, cancer, copper storage diseases, or it may be idiopathic.
Xylitol is a sugar substitute used in chewing gum, chewable vitamins, candy, toothpaste, and other products. Although a small preliminary study indicated xylitol may be safe for dogs, other studies show significant toxicity. There have been cases of foods, candies and gums containing xylitol causing toxic or even fatal liver damage in dogs.
Overdoses of vitamins can be harmful in dogs. As an example, calcium in excess can cause bone problems, especially in the large-breed dogs. Over-supplementation of vitamins A and D can cause vitamin toxicity in dogs. Excess vitamin A can cause dehydration, joint pain and can also harm the blood vessels, while too much vitamin D can cause muscular atrophy, or loss of appetite.
7. Flea and tick borne diseases: Fleas and ticks are certainly undesirable guests on your pets fur, but they are more than just unwelcome creepy crawlies. These tiny passengers can carry serious diseases that can cause profound illness in both pets and people. Want to keep your cats, dogs, and human family healthy? Use a monthly topical flea and tick preventative, vacuum regularly, and always check your pets and yourself after playing with other animals or in grassy fields.
Pulmonary hypertension* is high pressure in the pulmonary artery. In dogs it can be caused by heartworm disease, pulmonary thromboembolism, or chronic hypoxemia (low oxygen). It can result in right-sided heart disease (cor pulmonale). Signs include difficulty breathing, cyanosis, and exercise intolerance.
Jump up ^ Freeman, LM; Abood, SK; Fascetti, AJ; Fleeman, LM; Michel, KE; Laflamme, DP; Bauer, C; Kemp, BL; Van Doren, JR; Willoughby, KN (15 August 2006). “Disease prevalence among dogs and cats in the United States and Australia and proportions of dogs and cats that receive therapeutic diets or dietary supplements”. J. Am. Vet. Med. Assoc. 229 (4): 531–4. doi:10.2460/javma.229.4.531. PMID 16910851.
Parasites, particularly intestinal worms such as hookworms, tapeworms and roundworms, can be transmitted in a dog’s feces. Some tapeworms have fleas as intermediate hosts: the worm egg must be consumed by a flea to hatch, then the infected flea must be ingested (usually by the dog while grooming itself, but occasionally by a human through various means) for the adult worm to establish itself in the intestines. The worm’s eggs then pass through the intestines and adhere to the nether regions of the dog, and the cycle begins again.
Leukemias* are progressive proliferation of cancerous white blood cells within the bone marrow, resulting in destruction of the bone marrow and pancytopenia in many cases. Types of leukemia in dogs include acute lymphoblastic leukemia, acute myelocytic leukemia, acute monocytic leukemia, acute myelomonocytic leukemia, acute megakaryocytic leukemia, chronic lymphocytic leukemia, chronic myelogenous leukemia, chronic basophilic leukemia, and chronic eosinophilic leukemia (or hypereosinophilic syndrome).
Jump up ^ Häggström J, Boswood A, O’Grady M, et al. (2008). “Effect of pimobendan or benazepril hydrochloride on survival times in dogs with congestive heart failure caused by naturally occurring myxomatous mitral valve disease: the QUEST study”. J. Vet. Intern. Med. 22 (5): 1124–35. doi:10.1111/j.1939-1676.2008.0150.x. PMID 18638016.
Some diseases and other health problems are common to both humans and dogs; others are unique to dogs and other animals. Dogs are susceptible to various diseases; similarly to humans, they can have diabetes, epilepsy, cancer, or arthritis.
Visit a veterinarian for routine evaluation and care to keep your dog healthy and prevent infectious diseases. Keeping your dog on a monthly preventative for fleas, heartworms, and other parasites, and up to date on vaccinations can help prevent certain diseases.
Pasteurellosis is a bacterial disease associated with animal bites and scratches. Pasteurella is a normal bacterium that lives in the mouths of healthy dogs. The bacteria do not typically make dogs sick; however, dogs can develop abscesses or skin infections in places where they were scratched or bitten by another animal.
The frequency of bilateral glaucoma with a genetic base in purebred dogs is higher than in any species except humans. Cataracts in dogs either have a genetic base or can also be caused by diabetes. Nuclear sclerosis resembles a cataract but is actually a normal age-related change.
Jump up ^ Knight, A. P.; Walter, R. G. (2003). “Plants Affecting the Digestive System”. A Guide to Plant Poisoning of Animals in North America. International Veterinary Information Service. Retrieved 2007-01-07.
Collie eye anomaly (CEA) is a congenital, inherited, bilateral eye disease of dogs involving the retina, choroid, and sclera. It can be a mild disease or cause blindness. It is known to occur in Smooth and Rough Collies, Shetland Sheepdogs, Australian Shepherds, Border Collies, and Nova Scotia Duck Tolling Retrievers.
Tick-borne diseases are common in dogs. Lyme disease, or borreliosis, is caused by Borrelia burgdorferi and spread by Ixodes pacificus on the West coast of the United States and by I. scapularis (deer tick) in the rest of the U.S. Signs and symptoms include fever, joint swelling and pain, lameness, and swelling of the lymph nodes. It has been diagnosed in dogs in all 48 states of the continental U.S. Ehrlichia canis, which causes canine ehrlichiosis, and Rickettsia rickettsii, which causes Rocky Mountain spotted fever, are both spread by the American dog tick, Dermacentor variabilis, and the brown dog tick, Rhipicephalus sanguineous.
People who become infected with leptospirosis might not have any signs of the disease. Others will have nonspecific flu-like signs within 2-7 days after exposure. These symptoms usually resolve without medical treatment, but can reappear and lead to more severe disease.
Facial nerve paralysis* is most commonly caused in dogs by trauma, otitis media, or as an idiopathic condition. Signs include an inability to blink, drooping of the ear, and drooping of the lips on the affected side, although in chronic conditions fibrosis occurs and the ear and lips may appear to be in an abnormal position.
Coccidioidomycosis* is a fungal disease caused by Coccidioides immitis or Coccidioides posadasii that affects a variety of species, including dogs. In dogs signs of primary pulmonary disease include a cough, fever, weight loss, anorexia, and lethargy. Disseminated disease occurs when the fungus has spread outside of the lungs and may include clinical signs such as lameness, pain, seizures, anterior uveitis, and localized swelling. Diagnosis of Valley Fever may include multiple tests, including serology and radiology. According to a study performed in the Tucson and Phoenix area, 28% of dogs will test positive for exposure to the fungus by two years of age, but only 6% of the dogs will be ill with clinical disease. There is an increased risk of infection associated with amount of time spent outdoors, a larger roaming space accessed by the dog, and increasing age.
Retinal dysplasia is an eye disease affecting the retina. It is usually a nonprogressive disease and can be caused by viral infections, drugs, vitamin A deficiency, or genetics. Retinal dysplasia is characterized by folds or rosettes (round clumps) of the retinal tissue.
Heartworm is a parasitic worm that lives in the heart and pulmonary arteries of an infected animal. The worms travel through the bloodstream—harming arteries and vital organs as they go—ultimately completing their journey to the vessels of the lung and the heart chamber about six months after the initial infection. Several hundred worms can live in one dog for five to seven years.
What’s true for humans is also true for dogs. Of-the-moment food regimens—like the wolf diet, raw-food craze, or grain-free eating—aren’t worth the money or time. Yes, they can provide balanced meals, and thus aren’t harmful, Case says, “but there is no demonstrated evidence of their health benefits” over other more-standard diets. Tip: Want to provide your pooch with raw food? Be sure it’s pasteurized to ensure safety.
Jump up ^ Thrusfield, M. V; Aitken, C. G. G; Muirhead, R. H (1989). “A field investigation of kennel cough: Efficacy of vaccination”. J. Small Animal Pract. 30 (10): 550. doi:10.1111/j.1748-5827.1989.tb01471.x.
Complications include dehydration, secondary infections, sepsis and a condition in which part of the intestine slips into the part below it (called intussusception). CPV also can damage the spleen. Dogs that have another health condition are at increased risk for developing severe complications and illness.
Prostate cancer* is rare in dogs and occurs in both intact and neutered animals. It is malignant. The most common type is adenocarcinoma. Signs include blood in the urine and straining to urinate or defecate. It most commonly spreads to bone and the lungs.
So keep those chompers clean! Brush regularly throughout your dog’s lifetime—meaning at least once a week—offer bully sticks or other hard chew toys to remove plaque, or get a professional teeth cleaning done at your vet’s office, which requires anesthesia but is quite effective.
Learn to watch your dog closely, and you’ll be surprised by how much it communicates how it feels, mentally and physically. The position of its ears and tail, it’s breathing, whether it often scratches or licks its paws can all be signs of distress. “Chronic behaviors and symptoms must be addressed,” says Kerns. “Healthy dogs don’t show symptoms on a daily basis.” Tip: Consider starting a health notebook or a calendar, so you can track when you administer meds, change food, or notice new behaviors, like obsessive grooming.
Corneal ulcer, or ulcerative keratitis, is an inflammatory condition of the cornea involving loss of its outer layer. They are caused by trauma, detergent burns, and infections. Other eye conditions can cause corneal ulcers, such as entropion, distichia, corneal dystrophy, and keratoconjunctivitis sicca.
“We would also encourage all vets and owners to work with David and his team at Anderson Moores so we can have a clear picture of confirmed cases in the UK, to help prevent more dogs falling victim to this terrible disease.”
Dancing Dobermann disease is a type of myopathy that primarily affects the gastrocnemius muscle in Dobermanns. It usually starts between the ages of 6 to 7 months. One rear leg will flex while standing. Over the next few months it will begin to affect the other rear leg.
Distichia (including ectopic cilia) is an eyelash that arises from an abnormal spot on the eyelid. Distichiae usually cause no symptoms because the lashes are soft, but they can irritate the eye and cause tearing, squinting, inflammation, and corneal ulcers.
Horner’s syndrome* results from damage to the sympathetic innervation of the eye. Signs include enophthalmos (sunken eye), miosis (small pupil), elevated third eyelid, and ptosis (drooping of the upper eyelid). Usually the syndrome in dogs is idiopathic, but it can also be caused by trauma, tumors, or ear infections.
However, there is one cause of chronic kidney disease that is preventable: dental disease. In the advanced stages of dental disease, bacteria from the dog’s gums can enter the bloodstream and damage vital organs, like the kidneys.
Syringomyelia* is a condition where a fluid filled sac develops in the spinal cord. The most important cause in dogs is by a Chiari I malformation, which is when an underdeveloped occipital bone interferes with spinal fluid circulation and results in fluid accumulation in the cervical spinal cord. This is a congenital disease most commonly found in small breeds such as the Brussels Griffon and the Cavalier King Charles Spaniel. Other breeds known to be affected include the Bichon Frise, Boston terrier, bull terrier, Chihuahua, French bulldog, Havanese, King Charles spaniel (the English toy spaniel), Maltese, miniature dachshunds, miniature and toy poodles, Papillon, Pomeranian, Pugs, Shih Tzu, Staffordshire bull terrier, and the Yorkshire terrier. Signs may include ataxia, weakness, and neck pain.
Bloat can affect any dog at any age but there are breeds more susceptible to it: usually large breed, deep-chested dogs like Great Danes, German shepherds, boxers, Labrador retrievers, bloodhounds, and weimaraners. Mid-size and smaller dogs aren’t much at risk, with the exception of basset hounds and dachshunds, who also have long, broad chests.