Follow the links below to learn more about commonly-seen pet diseases. We have tried to provide thorough, yet not overwhelming summaries of common pet ailments.

Addison's Disease - caused by an inability of the adrenal glands to produce cortisone. Affected animals tend to have a waxing and waning course of lethargy, vomiting, and diarrhea. If left untreated, the disease is often fatal.

Allergies - quite common ailments of pets. Allergies to foods, grasses, pollens, weeds, molds and dust can cause significant problems. Unlike the hayfever symptoms people show, pet allergies often manifest as itchy skin rashes.

Canine Influenza - an emerging respiratory infection of dogs. While similar to Kennel Cough, Canine Influenza can be much more serious.

Cushing's Disease - caused by an overproduction of cortisone by the adrenal glands. Affected animals tend to drink and urinate excessively, are very hungry, and have a characteristic "pot belly."

Demodectic Mange - caused by infection of hair follicles with the skin mite Demodex canis. Affected dogs often develop hair loss and skin infections.

Diabetes Mellitus - caused by the lack of insulin production by the pancreas. Patients suffer from high blood glucose (sugar), resulting in excess thirst and urination and numerous other symptoms.

Feline Leukemia Virus/Feline Immunodeficiency Virus - serious viral infections of cats; similar to HIV in people. These viruses suppress the immune system, resulting in frequent infections, weight loss, and failure to thrive.

Heartworm Disease - serious parasitic infection of both dogs and cats spread by the common mosquito. This disease can result in coughing, weight loss, poor stamina, and eventually heart failure.

Hyperthyroidism - caused by an overproduction of hormone by the thyroid gland. This disease is common in cats, while very rare in dogs. Affected animals lose weight, have increased appetites, and often suffer from vomiting and diarrhea.

Hypothyroidism - caused by an underproduction of hormone by the thyroid gland. This disease is common in dogs, while very rare in cats. Affected animals gain weight, have low energy levels, and often suffer from skin and haircoat problems.