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Cats + Medical Conditions

  • Polycythemia vera is a rare disease of dogs and cats in which too many red blood cells are produced by the bone marrow. The blood becomes thick and has difficulty moving through the small blood vessels. Your pet may feel tired, sluggish, and weak. Polycythemia is a potentially fatal disease, but if discovered early enough, treatment may be possible. If left untreated, polycythemia vera can affect the heart.

  • This handout explains post-vaccination sarcomas (also called injection-site sarcomas) in cats. They are a rare consequence of vaccine injections (and other drugs or materials) that can cause a very aggressive form of cancer at the site of the injection. The incidence of this condition, as well as precautions you and your veterinarian can take, are highlighted.

  • A telemedicine visit is typically conducted over telephone, text messaging, chat, email, or videoconference. This may allow a veterinarian to diagnose and treat your pet’s medical condition remotely, without the need for an in-person visit. Your appointment will be conducted by a licensed veterinarian.

  • The American Animal Hospital Association and American Veterinary Medical Association have established guidelines to standardize preventive health care for cats, helping them to live longer, healthier lives. This handout provides an overview of the recommendations within these guidelines and why they are so important.

  • Progressive retinal atrophy (PRA) is a group of degenerative diseases that affect photoreceptor cells in the eyes. With this disease, the cells deteriorate over time, eventually leading to blindness. There are two main forms of PRA recognized in cats, an early-onset, inherited form called retinal dysplasia, and a late-onset form. PRA is an inherited condition in Abyssinian and Persian cats. When a cat develops PRA, it should be removed from the breeding program, along with its parents and siblings. As PRA progresses, your cat's vision gradually worsens until she becomes completely blind. There is currently no effective treatment for PRA.

  • Prostatic disease in cats is uncommon and, as a result, relatively little is known about these conditions. Enlargement of the prostate is a common sign with most prostatic diseases and may be noted by your veterinarian on a rectal exam. Other diagnostic tests may be required to determine the cause of your cat's condition.

  • Enteropathy means any disease of the intestinal system. Protein-losing enteropathy (PLE) is not a specific disease but a group of diseases that cause the loss of proteins from the bloodstream into the gastrointestinal (GI) tract. Symptoms include diarrhea, weight loss, and fluid buildup in areas of the body. Treatment and prognosis are determined by the underlying cause.

  • Pulmonary hypertension means that the peak blood pressure in the arteries of the lungs is much higher than normal. Several abnormalities can lead to high blood pressure in the arteries of the lungs and many of the underlying reasons involve the heart. There are many signs of pulmonary hypertension including exercise intolerance, difficulty breathing with or without exertion/exercise, rapid breathing, coughing, spitting up blood from the lungs, fainting, and more. There are many potential causes of pulmonary hypertension. Several medications are available to treat your cat. Activity may need to be restricted. It is essential to monitor cats with pulmonary hypertension for worsening of clinical signs. Periodic physical examinations, blood pressure monitoring, and ultrasound evaluations of the heart are also important. The long-term prognosis is very guarded for cats with pulmonary hypertension.

  • Pulmonary thromboembolism describes a condition in which a blood clot lodges in one of the pulmonary arteries, blocking blood flow into the portion of the lung served by that artery. The signs of pulmonary thromboembolism include sudden difficulty breathing, rapid breathing, decreased appetite, fainting, coughing, spitting up blood, weakness, exercise intolerance, and the inability to get comfortable. Sudden death is possible. This article discusses potential causes, treatment, and prognosis.

  • Pyelonephritis is an upper urinary tract infection involving the kidneys and ureters. Many cats have no clinical signs when they have pyelonephritis, although they may have signs of lower urinary tract disease. Pyelonephritis is usually caused by a bacterial infection that moves up the urinary tract from the bladder to the kidneys. Cats with sudden pyelonephritis do well and return to normal health unless concurrent complications exist.