Based on the answers you provided, the Web-DVM Symptom Checker has determined that the following are possible causes for your cat’s distended abdomen. Please read the Web-DVM articles for more information on these diseases. Not listed but a possible cause for distended abdomen at this advanced age, is a mass growing from an intra-abdominal organ. Masses can be benign (not cancerous) or malignant (cancerous) in nature. If you still seek further information, please visit our Ask The Vet page to submit a one on one consultation with a licensed veterinarian 24 hours a day, 7 days a week.
Intestinal Parasites
Partial GI foreign body obstruction
Ascites
My cats abdomen has become distended over the past several days. She is about 17 years old and has been getting smaller even though she eats all the time. But we noticed this distension a few days ago. She continues to eat and have normal bowel habits. She doesn’t seem to be in pain. We recently treated her with some flea medication but she is not an outside cat. Not sure how she got them.
My cat is 18 and the vet said he had fluid in his belly. She said it may be because his organs and heart don’t work as well as they used to. He is hungry and pees and poops a little every day. I was putting water on him but when this started I stopped. Not sure what to do at this point.