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Illustrated Articles

Cats + Medical Conditions

  • Inflammatory bowel disease (IBD) is a syndrome affecting the stomach and/or intestines that can cause vomiting, diarrhea, or weight loss. It is considered a chronic condition that may have a good prognosis, though a diagnosis is not always easy. Treatment may involve a diet change, medications, or both and will need to be closely followed to prevent relapses.

  • A hernia occurs when a body part or internal organ protrudes through the wall of muscle or tissue meant to contain it. In the case of an inguinal hernia, these internal organs or structures have managed to make their way through the inguinal ring (an opening in the abdominal wall near the pelvis) to protrude into the groin area. The condition itself can be broadly classified as either acquired or congenital. In general, it is best to surgically repair an inguinal hernia at the time of diagnosis, as delaying can result in a more complicated and difficult procedure.

  • Otitis interna is a serious condition that can cause significant signs in your cat, including drooling from the side of the mouth, difficulty eating, inability to blink, and drooping eyelids, lips, and nostrils on the affected side. Treatment may involve long-term medications if the underlying cause can be identified, such as bacterial or fungal infection. Less commonly, surgery may be needed. Many cats will respond to treatment and recover well.

  • This handout discusses the anatomy of the cat’s ear canal, how to safely clean your cat’s ears to prevent ear infections, and how to apply topical ear medications if needed.

  • A joint luxation is a dislocation or complete separation between the bones that normally move back and forth to form a joint. Subluxation refers to a partial separation of the joint. The most commonly subluxated joint in cats is the hip, although any joint can be affected. Your veterinarian may suspect a joint subluxation based on a history of trauma and physical examination findings such as pain and limping. A radiograph is necessary to definitively diagnose a joint subluxation. In many cases, the joint can be reduced or replaced to its original orientation by a procedure called a closed reduction, with a good prognosis if treated immediately. Surgery correction, however, may be needed.

  • This handout outlines the use of disease-modifying osteoarthritis drugs (DMOADs) in cats, specifically the use of polysulfated glycosaminoglycans (PSGAGs). The rationale for their use, potential side effects, and treatment expectations are explained.

  • Keratoconjunctivitis sicca (KCS) is also commonly referred to as dry eye. It is an uncommon eye condition in cats. It results from inadequate production of the watery portion of the tear film by the lacrimal gland or the third eyelid gland. Cats with KCS have painful, red, eyes with squinting. Corneal ulcers may also be present. Chronic cases have scarring on the cornea, impairing vision. The prognosis for cats diagnosed with KCS is good with long-term treatment and diligent monitoring.

  • The lacrimal duct is part of the nasolacrimal system, a series of narrow tubes that allow tears to drain from the eye into the nose and mouth. This duct can sometimes become blocked or fail to develop properly, resulting in tears overflowing and potentially staining the face below the eye. The clinical signs, diagnosis, and treatment options for the condition are explained in this handout.

  • Leaky gut syndrome refers to an increase in the permeability of the intestines. This condition may be caused by any significant damage to the intestines. Acute cases of leaky gut may be caused by infection, trauma, toxins, or medication overdoses. Chronic cases, in contrast, may be caused by food allergies, long-term NSAID use, or other causes. Treatments will be targeted at the underlying disease causing your cat's leaky gut.

  • Lenticular sclerosis is the term for a bluish, transparent haze that develops in the lens of the eye in middle-aged to senior cats. Vision does not appear to be significantly affected. While the exact mechanism is poorly understood, it appears that the lens gradually becomes denser or harder with age. There is no specific treatment for lenticular sclerosis, nor is treatment necessary.