I've had my cat's stool sample tested a few times because of fresh blood and the results were negative. After a visit to the vet, he suggested an antibiotic. Nothing much has changed except not every sample has blood. Is the only option to open the pet up to take a look? She is about 1 1/2 yrs. old and is spayed and declawed. She is also up to date on all her vaccinations. Thanks.
You can talk to your vet about endoscopy. This is less invasive. I do not know if your vet offers this. vetcare