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Educational Articles

Cats + Medical Conditions

  • Endocarditis is an infection of a heart valve, most often affecting the mitral or aortic valve. It can arise any time that bacteria enter the bloodstream, though it is more common when the heart valve has already been damaged for some other reason. The clinical signs of endocarditis are often nonspecific in the early stages, but may progress to include signs of heart failure later in the course of the disease. The diagnosis and treatment of endocarditis can present a challenge, requiring multiple tests and prolonged courses of antibiotic therapy.

  • Eosinophilic granuloma complex is a term used to describe three forms of skin lesions in cats including eosinophilic plaque, eosinophilic granuloma, and indolent ulcers. The lesions most commonly occur on the lip, sometimes resulting in disfigurement, but can also develop in the mouth or on other areas of the body.

  • Feline eosinophilic keratitis is a chronic inflammatory disease of the cornea that results in the surface of the eye appearing pink, white, or chalky. It is caused by an accumulation of inflammatory cells called eosinophils. The clinical signs, appearance, diagnosis, and treatment of this condition are explained in this handout.

  • Open and honest communication with your veterinarian and veterinary healthcare team throughout your cat's life lays the foundation for effective communication when that cat's life begins drawing to a close. Discussion with your veterinarian will clarify any specific medical implications of your cat's disease that can serve as benchmarks to suggest that euthanasia should be considered. Most often, euthanasia is provided at the veterinary practice or in your home. The veterinary healthcare team will be an important partner as you negotiate the difficult days and decisions leading up to your cat's peaceful passing.

  • Losing weight can be difficult. While feeding a prescription weight loss diet is certainly a good start in a weight loss program for your cat, it is important to remember that food intake is only one part of the problem; energy expenditure is also significant. Encouraging your cat to exercise by playing with him, putting his food in unusual places so he has to look for it, and making him work for his food (e.g., training, foraging toys) will help.

  • Obesity occurs when a cat consumes more calories than they expend. Therefore, managing obesity in cats often requires both dietary changes and increased exercise/activity. There are several methods for increasing activity in cats, including play, using cat trees and climbing structures, outdoor enclosures, and intentional, active feeding practices. Each of these can be beneficial in promoting weight loss.

  • Epiphora or excessive tearing from the eyes can be a sign of tear duct blockage or more serious eye problems. Clinical signs include dampness beneath the eyes, reddish-brown staining of the fur beneath the eyes, odor, skin irritation, and skin infection. The facial anatomy of short faced (brachycephalic) breeds may play a role in this condition. Treatment may include flushing of the nasolacrimal duct, or surgery to open the lacrimal puncta. The prognosis is variable and dependent on whether the underlying cause can be found and treated.

  • Feline idiopathic cystitis (FIC) includes a set of clinical signs associated with abnormal urination and is the diagnosis when there is no identifiable cause of the clinical signs. Cats often suffer waxing and waning of symptoms such as straining to urinate, blood in urine, and inappropriate urination. Treatment and prognosis are discussed.

  • This handout provides information on Feline Immunodeficiency Virus (FIV) in cats. Included is information on how the disease is transmitted, the clinical signs, the recommendations for isolation of the infected cats, and potential treatment guidelines should your cat be infected with this virus.

  • Feline upper respiratory infection (URI) is one term for a respiratory infection caused by one or more viral or bacterial agents. Synonyms for this condition include feline infectious respiratory disease and feline upper respiratory disease complex (URD).