Inflammatory bowel disease is a common cause of chronic vomiting and weight loss in cats. Accurate diagnosis and appropriate treatment significantly improve welfare for affected cats.
Feline IBD causes ongoing discomfort and welfare compromise — affected cats experience chronic nausea, abdominal cramping, and the distress of vomiting and diarrhea. Weight loss in IBD cats reflects both reduced nutrient absorption and reduced appetite from nausea. The condition is often managed for years, requiring owners to balance medication side effects against disease control. Distinguishing IBD from intestinal lymphoma is critical: small cell lymphoma is actually more common in older cats and has a good prognosis with treatment, while large cell lymphoma has a poor prognosis. Definitive diagnosis requires intestinal biopsy (either surgical or endoscopic) — a procedure that improves treatment precision and welfare outcomes. Dietary trials with hydrolyzed or novel protein diets are a reasonable first-line approach in mild cases. Regular monitoring for cobalamin deficiency (which causes neurological signs in severe cases) is essential in cats with chronic small intestinal disease.