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The rupture of the cruciate ligament is the most common knee injury in the dog. This injury has two common presentations. One is the young athletic dog playing roughly who acutely ruptures the ligament and is non-weight bearing on the affected hind leg. The second presentation is the older, overweight

Luxating patella is a condition where the kneecap (patella) moves out of its normal position. Luxating patella is one of the most common knee joint abnormalities of dogs, but it is only occasionally seen in cats. It may affect one or both of the knees. In some cases it moves (luxates) towards the inside

Canine distemper is caused by a virus that is shed in bodily fluids of infected animals. The virus affects primarily the lungs, intestines, and nervous system. Symptoms of the infection can include coughing, diarrhea, vomiting, inappetance, dehydration, weight loss, seizures, and encephalitis. Secondary

Vertigo is a syndrome in the elderly dog, which can be very frightening to the owners. The dog is suddenly afflicted with a balance problem, usually staggering, but occasionally unable to stand, and more rarely actually rolling over and over. There is a tilting of the head to one side and nystagmus,

Salmonella is a bacterium that can cause disease in humans, dogs, cats, and other animals. It can cause a variety of symptoms, commonly vomiting and/or diarrhea, but also severe infections and septicemia. It can also cause abscesses, meningitis, bone infections, and abortion. Salmonella is found worldwide

There are many types of roundworms, but some of the most common are intestinal parasites of dogs, cats, and raccoons. Puppies are frequently born with roundworms, and kittens can be infected via the mother's milk or feces. Adult roundworms are ivory colored, four to six inches long, and round (not flat

Rabies is a fatal viral infection that is transmitted primarily through bite wounds. Skunks, bats, raccoons, and foxes are the primary carriers. Rabies is also fatal to humans, there has been only one case of a person surviving rabies when treatment was started after clinical signs were present. Puppies

There are many types of parasites that are found in the GI tract of cats and dogs. Worms such as roundworms, whipworms, and hookworms are very common in almost all parts of the world. These parasites shed their infective eggs in the pet's stool and contaminate the environment; some eggs can live on yards

Hookworms are small, thread-like parasites of the small intestine where they attach and suck large amounts of blood. These parasites are found in almost all parts of the world, being common in dogs, and occasionally seen in cats. Symptoms are usually diarrhea and weight loss. The parasites can actually

Excess weight is a serious health problem for dogs and cats and is common in many countries. The two main causes of obesity are too much food and too little exercise. Other contributing factors can be due to hormonal influences, certain genetic factors, and other disease processes. If you pet is carrying

There are many types of mites that infect dogs, cats, and other animals. Mites are microscopic arthropod parasites that, for the most part, infect the skin or mucous membranes. Mites can even be present on birds and reptiles. The most common mites that infect dogs and cats are ear mites, Demodex, scabies,

Heartworm has been diagnosed in dogs in all parts of the world and is actually very common. This may be due to the fact that heartworm has a virtual 100% prevalence rate in unprotected dogs living in highly endemic areas. Heartworm, also known as Dirofilaria immitis, is transmitted by mosquitoes. The

Gastric Dilation Volvulus (GDV) is a life threatening, acute condition that requires immediate medical attention. Certain breeds are more prone to this condition: Boxers, Great Danes, Standard Poodles, Saint Bernards, Irish Setters, Dobermans, Weimaraners and Gordon Setters. These breeds are considered

The Parvovirus is known worldwide and causes disease in many different species of animals. Different strains of virus only infect certain types of animals. For example, the Canine Parvovirus (Parvo) will mainly infect dogs and does not cause disease in cats or humans. Feline Parvovirus, a different strain

Cancer, by definition, is the uncontrolled growth of cells. Any type of cells in the body can become cancerous. Once these cells grow out of control, they take over areas previously occupied by normal cells; sometimes these tumor cells break off and travel to other areas of the body. Wherever these cells

Prairie dogs are cute, affable creatures. But before taking one on as a pet, check your local laws. In some states, such as Colorado, it's illegal to keep prairie dogs as pets. Mostly, this is because they may spread monkeypox. If you live in a state that welcomes pet prairie dogs, be sure to buy from