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Why is my cat bleeding from his anus with no stool after vet visits?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Mediumhair | Male | neutered | 5 years and 1 month old | 12 lbs

This past month, he started passing frequent, semi-loose stools that were yellow in color. He also stopped eating and was regurgitating water. Soon, he was passing no stool, only blood and mucus. I have taken him to his regular vet several times, and he was given Albon, Mitranidazole initially, given an Xray, Ultra-Sound and bloodwork (twice), and then given steroids, an appetite stimulant, and two separate intensive enemas. Bleeding profusely out of his anus, passing tissue/blood only.

3 Answers

Most Helpful Answer

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Answered By Sara Farmer, DVM

Veterinarian

Published on February 16th, 2019

Poor Greg! It sounds like he has had a lot of testing and treatments with no response. You may want to ask about referral to an internal medicine specialist as the next step. Some other tests to consider might be a fecal PCR or culture, or tests for fungal disease depending on your area. Endoscopy to look in the colon and obtain biopsy samples might be an option with an internal medicine specialist as well. I hope you get some answers soon.

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    Answered By Ana M, DVM

    Veterinarian

    Published on June 14th, 2019

    Thank you for submitting your question regarding Theo. I recommend that he sees a veterinarian. The blood and fluid could indicate leakage from an infected anal gland. He also could be experiencing diarrhea and unable to contain it. Finally, if he is struggling to urinate, there can be blood around the hind end. His veterinarian will examine him and depending on these findings may recommend fecal testing. From there, treatment options can be discussed. I hope this information helps!

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    Answered By Daniel Fonza, DVM

    Veterinarian

    Published on February 3rd, 2018

    Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your concern. It is difficult to say what the cause of the bleeding is without examining Mowgli but what you are seeing could also be from the urine if he is dealing with a urinary tract problem. If the blood is indeed coming from his anus, this could be secondary to an anal gland problem (infected / abscessed) or bloody diarrhea. I would recommend having him examined by a veterinarian so that the most appropriate diagnostic and treatment recommendations can be made. If you are unable to get to a veterinarian right away, I would start a bland diet as outlined below. I hope this helps guide you in the right direction! Please let me know if you have any other questions or concerns and I would be more than happy to help you further. GENERAL INFORMATION A bland diet is a diet that is soft and highly digestible. It is low in fiber, fat and protein and is high in carbohydrates. Bland diets are generally composed of a single carbohydrate source and a single lean protein source. The most common bland diet is boiled rice and boiled lean chicken breast, without skin and bones. Since bland diets are low in fiber, stool production slows and defecation is less frequent. Bland diets are fed to rest the gastric system and to help promote normal stool formation. Animals that are physically sick should not be fed bland diets as a method of treatment. PRIOR TO FEEDING A BLAND DIET Pets should be fasted for 12 to 24 hours. Young animals should not be fasted for more than 12 hours. Fasting will allow the intestinal system to relax and minimize acid secretions that may irritate and inflame the intestinal lining. During the fast small amounts of water or ice chips may be provided. Never fast a sick animal, it may cause disease progression and death. BASIC BOILED RICE AND CHICKEN BLAND DIET RECIPE CARBOHYDRATE SOURCE: Boiled white rice LEAN PROTEIN SOURCE: Chicken breast, no skin and bones BOILED RICE: 1 part white rice with 3 parts water boiled for 20 – 25 minutes or until the rice is easily crushed. BOILED CHICKEN: De-fat chicken breast and boil in water for 10 – 15 minutes or until the chicken meat is easily pulled apart and cooked all way through. MIXING INSTRUCTIONS: Finely chop the lean protein and mix 2 cups carbohydrate source and ½ cup lean protein source. STORAGE INSTRUCTIONS: Bland diets can be premade and stored in the refrigerator for a maximum of 48 hours. The bland diet can be cooked in a batch and frozen in feeding sized portions to minimize preparation time. Thaw and warm the frozen diet prior to feeding. PERMITTED LEAN PROTEIN SUBSTITUTIONS Pork loin, egg whites, low fat cottage cheese. 7% low fat hamburger, plain low fat yogurt. PERMITTED CARBOHYDRATE SUBSTITUTIONS Boiled potatoes, boiled spaghetti, Minute rice. PERMITTED COMMERCIAL BLAND DIETS Science Prescription Diet I/D, Eukanuba Veterinary Diet Low Residue, Royal Canin Veterinary Diet Intestinal HE. FEEDING INSTRUCTIONS Estimate 25% of your animal’s diet and feed that amount of the bland diet every 6 – 8 hours. Smaller animals will require less and larger animals will require more adhering to the same carbohydrate to lean protein source ratio. The bland diet should be fed for 4 -5 days with no treats or other food sources until stools are firm. TRANSITION BACK TO A NORMAL DIET Never transition back to a regular diet rapidly. Transition back to the regular diet over a 1 week period. Start by adding 25% of the regular diet to 75% of the bland diet and feed that combination for 2 days. If stools continue to be firm then continue substituting the regular diet in 25% increments and feeding the combination in 2 day time intervals until the diet is 100% regular diet. Minimize treats for 1 week after moving the diet back to 100% regular diet.

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