Signs of Roundworms in Cats

Roundworms are the most common intestinal parasite found in cats. They cause discomfort and illness in adult cats, but are deadly to kittens. Roundworms live in the intestine and can grow as large as six inches. Cats contract roundworms from living in environments containing roaches or rodents, or from their mother as kittens. If your cat exhibits symptoms of roundworms, seek veterinary treatment to prevent serious complications from occuring.

  1. Abdominal Swelling

    • Abdominal swelling is a sign of roundworms in a cat. This symptom is most common in kittens, but can also be spotted in adult cats with severe roundworm infestations. Abdominal swelling gives your cat or kitten a pot-bellied look.

    Abdominal Discomfort

    • If a cat is suffering from roundworms, it may experience pain and discomfort in the stomach area. The cat may refuse to let you touch his stomach or may cry out in pain if you do. It may also cry out in pain, hiss, whine or growl for no apparent reason if it experiences stomach pain or discomfort.

    Appetite/Weight Changes

    • It is common for a cat or kitten with roundworms to have a decreased appetite or a total loss of appetite. The cat may skip meals and lose weight while still keeping that pot-bellied appearance.

    Digestive Upset

    • Frequent vomiting is a common sign that your cat is suffering from roundworms. Another common symptom is diarrhea. Vomiting and diarrhea are common symptoms of many feline diseases; however, if observed in combination with other symptoms in this list they may indicate roundworms.

    Growth Problems (Kittens Only)

    • Kittens or young cats that are still growing may experience stunted growth if infected with roundworms. The kitten may not grow as quickly as other kittens or may develop a weak or scrawny stature.

    Infected Young (Adult Female Cats Only)

    • If your female cat has recently given birth to a litter of kittens and the kittens are infected with roundworms, most likely they contracted those roundworms from their mother. Even if she shows no symptoms or signs of roundworms, have her checked by a veterinarian. Even if she didn't give roundworms to her kittens, which is unlikely, she may still pick them up from her kittens later on.