Why Does My Cat Have Blood in Its Stool?

by Alex Kountry
Updated on

Learn the causes of bloody stool in cats and the potential treatments available to help your cat feel better.

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Causes of Bloody Stools in Cats

There are a number of different causes of bloody stools in cats. The most common cause is constipation, which can cause the blood vessels in the rectum to rupture. Other causes include infection, inflammatory bowel disease, stress, and parasites. If your cat has bloody stools, it is important to take it to the vet so that the cause can be determined and treated accordingly.

Infectious diseases

There are several infectious diseases that can cause bloody stool in cats. The most common is coccidiosis, which is caused by a protozoal infection. Other diseases include feline infectious peritonitis (FIP), feline leukemia virus (FeLV), and feline immunodeficiency virus (FIV). All of these viruses are contagious and can be passed from one cat to another. vomiting and diarrhea, as well as blood in the stool, are common symptoms of these diseases. If your cat is showing any of these signs, it is important to take it to the vet immediately for diagnosis and treatment.

Intestinal parasites

One of the most common causes of bloody stools in cats is intestinal parasites, such asroundworms, hookworms, and tapeworms. These parasites can be contracted in a number of ways, including contact with infected soil, eating infected prey, or mother-to-kitten transmission.

In some cases, intestinal parasites may not cause any symptoms at all. However, in other cases, they can lead to severeblood loss and anemia. Intestinal parasites can also cause weight loss, diarrhea, vomiting, and abdominal pain.

If you suspect that your cat has intestinal parasites, it is important to take them to the vet for a diagnosis and treatment. In most cases, treatment will involve giving your cat oral or injectable medications to kill the parasites.

Inflammatory bowel disease

One of the most common causes of bloody stools in cats is inflammatory bowel disease (IBD). IBD is a condition in which the gastrointestinal tract becomes inflamed. The inflammation can be caused by a variety of factors, including infections, allergies, and autoimmune diseases. In some cases, the exact cause of IBD is unknown.

Symptoms of IBD include vomiting, diarrhea, weight loss, and lack of appetite. Bloody stools are also common in cats with IBD. Treatment for IBD typically involves a combination of steroids and other medications to reduce inflammation. In some cases, surgery may be necessary to remove part of the gastrointestinal tract that is affected by the disease.

Food allergies or intolerance

A cat food allergy is an overreaction of the immune system to a protein found in a particular food. The most common signs of food allergies in cats are itching (with or without hair loss), recurrent skin infections, ear infections, and digestive problems. A blood test can determine if your cat has a food allergy. If your cat is allergic to a certain protein, the best treatment is to feed a hypoallergenic diet that does not contain that protein.


Cancer is one of the most common causes of bloody stools in cats. Many types of tumors can cause gastrointestinal bleeding, either directly or indirectly. Tumors that grow in the intestines or stomach often ulcerate and bleed. Tumors that press on blood vessels can cause them to rupture and bleed. Even some cancers that don’t directly involve the gastrointestinal tract can cause bleeding by affecting how the blood clots.

Diagnosing the Cause of Bloody Stools in Cats

If you have noticed blood in your cat’s stool, it is important to take them to the vet as soon as possible. Bloody stool can be caused by a number of different things, some of which are more serious than others. In this article, we will go over some of the different possible causes of bloody stools in cats so that you can get your cat the help they need.

Physical examination

During a physical examination, your veterinarian will take a thorough history of your cat’s symptoms. Be prepared to answer questions about when the bloody stools started, if your cat has been straining to defecate, and if there has been any change in appetite or weight loss. Your veterinarian will also want to know if your cat has been exposed to any other cats with similar symptoms.

Laboratory tests

A number of laboratory tests may be performed to help diagnose the cause of bloody stools in cats. A complete blood count (CBC) may be performed to assess the form and function of all the cells in the blood, including red blood cells, white blood cells, and platelets. A serum biochemistry panel may also be performed to evaluate the liver and kidneys and to assess for anemia. AUrinalysis may also be performed to evaluate the health of the kidneys and urinary system and to rule out infection. Fecal flotation and/or a fecal smear may also be recommended to check for parasitic infections.

Imaging tests

Imaging tests may not be necessary if your cat has rectal bleeding and no other signs of illness. If your cat is ill or has rectal bleeding and clotting, your veterinarian may recommend abdominal x-rays or an ultrasound. These tests can help rule out a mass or foreign body in the intestine, as well as other conditions that may be causing the bleeding.

Treatment of Bloody Stools in Cats

Bloody stools can be a sign of a serious health problem in cats and should be evaluated by a veterinarian as soon as possible. There are many potential causes of bloody stools in cats, and a thorough history and physical examination are required to narrow down the potential causes.

Treatment of infectious diseases

There are several different types of infectious diseases that can cause bloody stools in cats. The most common include:

-Parvovirus: This is a highly contagious virus that affects dogs and puppies, but can also infect cats. It usually causes severe vomiting and diarrhea, and can be fatal if not treated promptly. Treatment typically involves hospitalization, intravenous fluids and antibiotics.

-Panleukopenia: This is another highly contagious virus that affects cats of all ages. It is often fatal, particularly in kittens. Treatment typically involves intensive supportive care in a hospital setting.

-Calicivirus: This virus is similar to panleukopenia and is also highly contagious. It can cause severe respiratory illness in addition to bloody diarrhea. Treatment typically involves intensive supportive care in a hospital setting.

Treatment of intestinal parasites

There are many different types of intestinal parasites that can infect cats, some of which are contagious to humans. The most common type of parasite found in cats is the roundworm, which is acquired either through contact with contaminated soil or by eating infected prey. Treatment for intestinal parasites generally involves giving the cat a course of oral deworming medication, although your veterinarian may also recommend additional measures such as changes in diet or environmental cleanliness.

Treatment of inflammatory bowel disease

There is no one-size-fits-all treatment for inflammatory bowel disease (IBD) in cats, as the best course of treatment will vary depending on the cause of the disease and the severity of your cat’s symptoms. In general, treatment for IBD in cats will involve a combination of medication, dietary changes, and close monitoring by your veterinarian.

Medications that may be used to treat IBD in cats include steroids, antibiotics, immunosuppressants, and anti-inflammatory drugs. Dietary changes may involve switching to a hypoallergenic or prescription diet. In some cases, surgery may be necessary to remove part of the intestine that is affected by IBD.

close monitoring by your veterinarian is essential to determine the effectiveness of treatment and make any necessary adjustments. With proper treatment, most cats with IBD can enjoy a good quality of life despite their condition.

Treatment of food allergies or intolerance

If your cat has food allergies or intolerance, the first step is to identify the allergen and then remove it from the diet. This can be difficult, as many commercial pet foods contain multiple ingredients. A novel protein diet may be necessary to identify the allergen. In some cases, specially formulated hypoallergenic diets are available from your veterinarian.

Treatment of cancer

Cancer is the leading cause of death in cats, accounting for approximately one-third of all feline deaths. Although there are many different types of cancer, the most common type diagnosed in cats is lymphoma. Lymphoma is a cancer of the lymphoid tissue, which is present in all parts of the body. The most common form of lymphoma in cats is alimentary lymphoma, which affects the stomach and intestines. Alimentary lymphoma is usually treated with chemotherapy.

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About the author

Alex Kountry

Alex Kountry is the founder of HayFarmGuy and has been a backyard farmer for over 10 years. Since then he has decided to write helpful articles that will help you become a better backyard farmer and know what to do. He also loves to play tennis and read books


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