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.
von Willebrand disease* is a common inherited disease in dogs caused by a deficiency of a protein called von Willebrand factor, which is involved in blood clotting. The disease varies from mild to severe, depending on the amount of von Willebrand factor present in the dog. Signs include spontaneous bleeding and excessive bleeding following surgery, injury, or during an estrous cycle.
Leishmaniasis is a protozoan disease of people and animals. It is transmitted by sandflies and is uncommon in North America. The two forms of the disease are visceral and cutaneous. The cutaneous form of leishmaniasis is most common in people and appears as one or more painless ulcers on the skin. Visceral leishmaniasis is less common and is characterized by fever, weight loss, enlarged spleen, and anemia. Dogs can develop both forms at the same time and have a variety of symptoms.
^ Jump up to: a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag Ettinger, Stephen J.; Feldman, Edward C. (1995). Textbook of Veterinary Internal Medicine (4th ed.). W. B. Saunders Company. ISBN 0-7216-6795-3.
Deafness* in dogs can be either acquired or congenital. Predisposing factors for acquired deafness include chronic infection, use of certain drugs, and most commonly, age-related changes in the cochlea. Congenital deafness can be genetic, seen sometimes in dogs with merle or white coats, or caused by in utero damage from infections or toxins.
If a lump is present, the first step is typically a needle biopsy, which removes a very small tissue sample for microscopic examination of cells. Alternately, surgery may be performed to remove all or part of the lump for diagnosis by a pathologist.
Thrombocytosis* is a condition characterized by an excess of platelets. Most cases are physiologic (caused by exercise) or reactive (secondary to some cancers, blood loss, or certain drugs). Rarely the condition is caused by a primary bone marrow disorder. In this last case, the platelets may not function normally, causing the blood to not clot properly.
Dogs in pet stores, animal shelters, and breeding kennels also are at increased risk. Overcrowding and poor sanitary conditions make it easier for the virus to spread. Certain breeds of dog (e.g., English springer spaniels, rottweilers, Doberman pinschers) and dogs that have another health condition may have a higher risk for developing severe disease.
Congenital diaphragmatic hernia* is uncommon, and is usually caused by trauma. Congenital diaphragmatic hernias are usually communications between the peritoneum and pericardium and are usually incidental findings.
Ocular tumors* in dogs are found in the eyelid, conjunctiva, third eyelid, cornea, sclera, iris, ciliary body, retina, choroid, optic nerve, and orbit. The most common types are Meibomian gland adenoma (eyelid), papilloma (eyelid), melanoma (eyelid, conjunctiva, sclera, iris, ciliary body, choroid), squamous cell carcinoma (conjunctiva), adenoma (ciliary body), adenocarcinoma (ciliary body), lymphoma (retina, choroid, ciliary body), medulloepithelioma (retina, choroid), ganglioglioma (retina, choroid), osteosarcoma (orbit), mast cell tumor (orbit), and optic nerve sheath meningioma.
Jump up ^ Reynolds, Cecily A.; Bain, Perry J.; Latimer, Kenneth S. “Canine and Feline Cryptococcosis”. College of Veterinary Medicine at the University of Georgia. Archived from the original on 2006-09-11. Retrieved 2006-11-27.
Tapeworms, roundworms, hookworms, and whipworms are common internal parasites in dogs. And although any worm infestation can make your pooch uncomfortable, some, like hookworms, can be fatal in puppies. Signs your dog may have worms include:
Grapes and raisins can cause acute kidney failure in dogs  (see also grape and raisin toxicity in dogs). The exact mechanism is not known, nor is there any means to determine the susceptibility of an individual dog. While as little as one raisin can be toxic to a susceptible 10 pounds (4.5 kg) dog, some other dogs have eaten as much as a pound of grapes or raisins at a time without ill effects. The affected dog usually vomits a few hours after consumption and begins showing signs of renal failure three to five days later. A mycotoxin is suspected to be involved, but one has not been found in grapes or raisins ingested by affected dogs. The reason some dogs develop renal failure following ingestion of grapes and raisins is not known. The most common pathological finding is proximal renal tubular necrosis.
Poisoning with pain medications is common. Aspirin, paracetamol (acetaminophen, Tylenol), ibuprofen (Advil), and naproxen (Aleve) can all cause severe clinical signs in dogs, including vomiting blood, diarrhea, and abdominal pain. Specifically, aspirin can cause metabolic acidosis and bleeding disorders, acetaminophen can cause liver disease, ibuprofen can cause kidney disease, and naproxen can cause ulcers in the stomach, which can perforate. Treatment depends on the clinical signs.
What to look for: Since there are so many kinds of allergies dogs can have (from food to flea/tick bites and a wide range of other possibilities), it’s important to look for any change in behavior when exposed to something new. If your dog goes a few days showing lack of energy, has a consistent cough or sneeze, or if anything else seems out-of-place, you might be dealing with allergies.
Disclaimer: This website is not intended to replace professional consultation, diagnosis, or treatment by a licensed veterinarian. If you require any veterinary related advice, contact your veterinarian promptly. Information at DogHealth.com is exclusively of a general reference nature. Do not disregard veterinary advice or delay treatment as a result of accessing information at this site.
The first symptoms in people can start days to months after exposure and include generalized weakness, fever, and headache. Within a few days symptoms will progress to confusion, anxiety, behavioral changes, and delirium. If you have been bitten by a dog or other animal and feel that there is a risk for rabies, contact your health care provider right away. Once symptoms appear, it is almost always too late for treatment.
My 13 yr old male miniature (24lb) neutered Dachshund has started to urinate when at rest. Usually at night, other than that he is acting normal & eating well. He does drink a lot but not really any more than what he has normally consumed before this all started. We are waiting for the results of his urinalysis. Any suggestions out there?
Canine parvovirus is an acute illness, which means that symptoms develop suddenly, usually within 3–10 days of exposure. In most cases, dogs that are infected with the virus do not develop the disease (called asymptomatic infection). Canine parvovirus often is fatal in puppies. Sometimes, puppies collapse and die without showing prior signs of infection.
Rocky Mountain spotted fever* is a rickettsial disease that occurs in dogs and humans. It is caused by Rickettsia rickettsii and spread by ticks of the genus Dermacentor. Signs are similar to human disease, including anorexia, fever, and thrombocytopenia.
6. Rabies: Rabies is the disease made famous in the hearbreaking scene in Old Yeller. Thankfully, the widespread use of the rabies vaccine in recent years has made its occurrence in pets in the U.S. quite rare. However, it is still present in wild animal populations, and because rabies is always fatal, it’s critical to make sure that your pets are current on their rabies vaccination.
What to look for: The signs of obesity might seem obvious, but having regular weight checks is important in order to keep records of your dog’s weight over time. It is important to recognize your dog’s weight gain early to give him the best chance possible for recourse.
People start showing signs 2-14 days after exposure; these may include fever, rash, headache, nausea, vomiting, abdominal pain, and muscle pain. RMSF can develop into a serious illness if not promptly treated.
It is not yet clear whether or not vitamins and supplements should be administered in dogs—opinions among veterinarians vary widely. While some think that vitamins and supplements are necessary and can improve the health of a dog, others believe that they are unnecessary and may harm the dog. According to the U.S. Food and Drug Administration (FDA), dogs receive a complete and balanced diet from the commercially processed dog food alone. Pet owners who give their dogs homemade diets may incorporate extra vitamins and supplements.
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.
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)
Acromegaly (also known as hypersomatotropism) is a hormonal condition resulting from over-secretion of the growth hormone somatotropin from the pituitary gland. The hormone is responsible for growth from birth to adulthood. Normally in adulthood, the growth plates of the bones close and the secretion of the hormone slows considerably. Because the bone plates close when entering maturity, the continued growth of acromegaly is not of normal proportions. Most dogs with the disease are unspayed females, but the condition can come about with use of medications containing progesterone. Acromegaly patients often also have diabetes mellitus. There is a transient form of acromegaly which can affect females at the diestrus portion of the reproductive cycle. This condition is brought about by the mammary glands excreting excess growth hormone, which is triggered by progesterone from the ovaries. As with non-transient acromegaly, spaying is necessary. The symptoms can include overgrowth or enlargement of gums with wide spaces between teeth, increased drinking, increased urination, thickening of the skin and skin folds, enlargement of the tongue and excessive panting. Acromegaly is also possible from a somatotroph adenoma. The hormone somatostatin can also be useful in treatment. Since hypothyroidism is connected with the release of excess growth hormone, hypothyroidism can be mistaken for acromegaly.
Urinary tract infection*, specifically cystitis or bladder infection, is common in dogs and usually caused by bacteria. Signs include blood in the urine (hematuria), difficulty urinating (dysuria), and frequent urination (polyuria). The most common types of bacteria cultured from the urine of dogs with cystitis are E. coli, Staphylococcus spp., Proteus mirabilis, Streptococcus spp., Klebsiella pneumoniae, Pseudomonas aeruginosa, and Enterobacter spp.
Jump up ^ Daminet, Sylvie (2010). “Canine Hypothyroidism: Update on Diagnosis and Treatment”. Proceedings of the 35th World Congress of the World Small Animal Veterinary Association. Retrieved 25 January 2011.
Puppies in breeding facilities or shelters are most at risk of coming in contact with an infected dog. Most dogs contract parvo by coming into contact with the poop of a contaminated dog, either directly or indirectly, like on a shoe.
2. Heartworm: Heartworm is a disease spread by mosquitoes and it has been diagnosed in all 50 states. While it is much more common in dogs, cats can also acquire the disease. If the infection is caught early enough in dogs, it can generally be treated, but there is no cure for feline heartworm disease. Therefore, the best way to keep your pets heart free of potentially deadly worms, is through a monthly preventative, prescribed by your veterinarian.
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.
Granulomatous meningoencephalitis (GME) (including Pug Dog encephalitis and other noninfectious causes of meningoencephalitis) is an inflammatory disease of the central nervous system of dogs. It is a form of meningoencephalitis. The disease is more common in female toy dogs of young and middle age.
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.
As the name suggests, an infected mosquito injects a larva into the dog’s skin, where it migrates to the circulatory system and takes up residence in the pulmonary arteries and heart, growing and reproducing to an alarming degree. The effects on the dog are quite predictable, cardiac failure over a year or two, leading to death. Treatment of an infected dog is difficult, involving an attempt to poison the healthy worm with arsenic compounds without killing the weakened dog, and frequently does not succeed. Prevention is much the better course, via heartworm prophylactics which contain a compound which kills the larvae immediately upon infection without harming the dog. Often they are available combined with other parasite preventives.
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.
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.
MRSA can be transmitted back and forth between people and animals through direct contact. In people, MRSA most often causes skin infections that can range from mild to severe. If left untreated, MRSA can spread to the bloodstream or lungs and cause life-threatening infections.
Dermal fragility syndrome, also known as Ehlers–Danlos-like syndrome, is a rare condition in dogs characterized by increased skin elasticity and poor wound healing. There appears to be a genetic basis for the disease.
Jump up ^ Hofmeister, Erik; Cumming, Melinda; Dhein, Cheryl (1998). “Owner Documentation of Coprophagia in the Canine”. Information for Pet Owners. Washington State University College of Veterinary Medicine. Archived from the original on 2007-01-06. Retrieved 2007-01-07.
Congenital vertebral anomalies, including butterfly, block, and transitional vertebrae, and hemivertebrae, are a collection of malformations of the spine in animals. Most are not clinically significant, but they can cause compression of the spinal cord by deforming the vertebral canal or causing instability.
Jump up ^ Rebar, A. H.; MacWilliams, P. S.; Feldman, B. F.; et al. (2005). “Platelets: Overview, Morphology, Quantity, Platelet Function Disorders (Thrombocytopathia or Thrombopathia)”. A Guide to Hematology in Dogs and Cats. Retrieved 2006-12-16.
Jump up ^ Morrow, C. M. K.; Valli, V. E.; Volmer, P. A.; Eubig, P. A. (2005). “Canine Renal Pathology Associated with Grape or Raisin Ingestion: 10 Cases”. J. Vet. Diagn. Investig. 17 (3): 223–31. doi:10.1177/104063870501700302. PMID 15945377.
Rarely, Capnocytophaga can spread to people through bites, scratches, or close contact from a dog or cat and cause illness. Most people who have contact with a dog or cat do not become sick. People with weakened immune systems who have difficulty fighting off infections (for example, people with cancer or those taking certain medications such as steroids) are at greater risk of becoming ill.
Important: if your dog is sick, do not hesitate to contact your veterinarian immediately! Your vet is skilled at properly caring for your dog. DogHealth.com is not a replacement for care by a veterinarian. It is only a resource for you to learn more about your dog’s health.
Back pain* in dogs, particularly in long-backed breeds, such as Basset Hounds and Dachshunds, is usually caused by intervertebral disk disease. It is caused by degeneration and protrusion of the disk and compression of the spinal cord. It occurs most commonly in the cervical and thoracolumbar regions. Signs include back pain, hind limb weakness, and paralysis.
Jump up ^ Jansen, Barbara; Valii, Victor E. O.; Thorner, Paul; Baumal, Reuben; Lumsden, John J. (1987). “Samoyed hereditary glomerulopathy: serial, clinical and laboratory (urine, serum biochemistry and hematology) studies”. Can. J. Vet. Res. 51 (3): 387–393. PMC 1255344 . PMID 3651895.
Renal failure (kidney failure) * is common in dogs and may be found in acute or chronic forms. It is defined by a loss of function of about 75 percent of the filtration system of the kidney and characterized by azotemia and low specific gravity of the urine. Acute renal failure can be caused by loss of blood supply, hypercalcemia, or toxins such as ethylene glycol (antifreeze) or aminoglycoside antibiotics (see: ethylene glycol poisoning). Chronic renal failure can be congenital and/or inherited or caused by cancer, infection, hypertension, glomerulonephritis, amyloidosis, progressive interstitial fibrosis, or any of the causes of acute renal failure.
“He is soooo cute,” you thought when you first laid eyes on your dog. And—yay!—he seemed to like you too. So you brought him home—only to realize that maybe you weren’t totally prepared for the work this relationship involved. Well, your mom was right (again): Owning a dog IS a big responsibility, from training to feeding to keeping it stress-free. “We don’t have that many years with our dogs,” says Whole Dog Journal editor Nancy Kerns. Here’s how to make sure each day is filled with health—and happiness for you both.
Food allergy* in dogs is commonly manifested as itching, especially of the face, paws, and the underside. Skin testing has proved unreliable, and a trial of a hypoallergenic diet is usually used for diagnosis.
Jump up ^ Shearman, JR; Wilton, AN. (2007). “Elimination of neutrophil elastase and adaptor protein complex 3 subunit genes as the cause of trapped neutrophil syndrome in Border collies”. Animal Genetics. 38 (2): 188–189. doi:10.1111/j.1365-2052.2007.01565.x. PMID 17302793.
Laryngeal paralysis is unilateral or bilateral paralysis of the larynx. In dogs it can be congenital, seen in the Bouvier des Flandres, Bull Terrier, Dalmatian, Rottweiler and Huskies, or an acquired, idiopathic disease, seen in older Labrador Retrievers, Golden Retrievers, St. Bernards, and Irish Setters. Signs include change in voice and difficulty breathing.
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.
Ear infections are common in dogs, particularly breeds with hanging ears, such as Beagles, and dogs with narrow ear canals, such as Cocker Spaniels. Other predisposing factors include allergies, ear parasites, and hypothyroidism.
How to treat: A steady diet and regular exercise are the two things needed when your dog is overweight. It’s important to recognize the severity of your dog’s obesity and be sure to administer the right changes in nutrition and exercise. Too much exercise, or too significant a reduction in food, can cause other issues, so you should consult your vet before making any drastic changes to the diet.
Ehrlichiosis is a bacterial disease that affects animals and people and is transmitted by ticks. Dogs show variable signs that include depression, loss of stamina, stiffness and reluctance to walk, and coughing.
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.