Diarrhea & Weight Loss in a Cat

Weight loss in cats is always cause for concern. Coupled with diarrhea, it's usually a sure sign something is wrong. If your cat is losing weight and has diarrhea, don't delay. The cat needs to see a veterinarian as quickly as possible.

  1. Irritable Bowel Disease

    • Among the symptoms of irritable bowel disease (IBD) are diarrhea, vomiting and weight loss. Sometimes all it takes to relieve the symptoms is a change in diet. Other therapies include the use of medication, usually Prednisone.

    Hyperthyroidism

    • Some untreated hyperthyroid cats have diarrhea, along with weight loss despite a ravenous appetite. Thyroid medication or a radioactive iodine injection are the treatments for feline hyperthyroidism.

    Pancreatitis

    • Along with diarrhea and weight loss, symptoms of pancreatitis include lethargy, dehydration and loss of appetite. Treatment often includes subcutaneous fluids, pain medication and nutritional support.

    Pancreatic Insufficiency

    • Cats with pancreatic insufficiency usually produce a high volume of loose or semiformed stools. The most common treatment for pancreatic insufficiency is adding pancreatic enzymes to the cat's food.

    Intestinal Lymphoma

    • The symptoms of intestinal lymphoma include vomiting and diarrhea, weight loss, and a rough hair coat. Chemotherapy is one of the treatments used for lymphoma in cats.

    Intestinal Parasites

    • Such intestinal parasites as roundworms, hookworms, coccidia and giardia can cause diarrhea and weight loss. All are treated with medication.