Blood in stool | Symptom Checker
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What causes blood in stool? 43 possible conditions

See a list of possible causes in order from the most common to the least.

21

Colorectal (Colon) Cancer

Colorectal cancer is a cancer that starts in the rectum or colon, located in the lower portion of the digestive system.

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22

Necrotizing Enterocolitis

This condition is considered a medical emergency. Urgent care may be required.

Necrotizing enterocolitis occurs when the intestinal tissue becomes damaged and dies. Learn about its symptoms, causes, and how it's diagnosed.

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23

Alcoholic Liver Disease

Damage to the liver from excessive drinking can lead to ALD. Years of alcohol abuse cause the liver to become inflamed and swollen. This damage can also cause scarring known as cirrhosis. Cirrhosis is the final stage o...

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24

Low Platelet Count (Thrombocytopenia)

A low platelet count, or thrombocytopenia, can range from mild to severe, depending on the cause. The symptoms can sometimes include severe bleeding.

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25

Amebiasis

Amebiasis is a parasitic infection of the intestines commonly contracted in tropical regions.

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26

Shigellosis

Shigellosis is a bacterial infection that affects the digestive system. The Shigella bacterium is spread through contact with contaminated feces.

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27

Crohn’s Disease

Crohn's disease is a chronic bowel disease that causes severe inflammation of the digestive tract. It is associated with abdominal pain, diarrhea, and may affect your quality of life. Crohn's disease is characterized b...

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28

Anal Cancer

Anal cancer is an uncommon cancer in the anal canal. It's easy to mistake symptoms of anal cancer for other conditions such as hemorrhoids, which could delay a diagnosis. Human papillomavirus is closely related to ana...

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29

Leukemia

Leukemia is a cancer of the blood cells. There are several types of blood cells, including red blood cells (RBCs), white blood cells (WBCs), and platelets. Generally, leukemia refers to cancers of the WBCs. Two types o...

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30

Chronic Kidney Disease

Chronic kidney disease (CKD) is the progressive and irreversible destruction of the kidneys. The most common causes of CKD are high blood pressure and diabetes.

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31

Glomerulonephritis

Glomerulonephritis is a serious illness that can be life-threatening and requires immediate treatment. The condition is sometimes called nephritis.

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32

Cirrhosis

Cirrhosis is the severe scarring and poor function of the liver caused by long-term exposure to toxins such as alcohol or viral infections.

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33

Necrotizing Vasculitis

This condition is considered a medical emergency. Urgent care may be required.

Necrotizing vasculitis is the inflammation of blood vessel walls. It can interrupt blood flow, causing skin, muscle, and blood vessel damage.

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34

Von Willebrand Disease

Von Willebrand disease is a rare bleeding disorder caused by a deficiency of von Willebrand factor (VWF), which helps blood clot. Symptoms include excessive nose bleeds and easy bruising.

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35

Hemophilia A

Hemophilia A (factor VIII deficiency) is the most common form of the blood clotting disorder hemophilia. It can cause prolonged bleeding, tight joints, and unexplained bruising.

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36

Kaposi's Sarcoma

Kaposi's sarcoma is a cancerous tumor associated with a virus that typically appears on the skin and around the mouth, nose, genitals, or anus.

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37

Christmas Disease (Hemophilia B)

Also called hemophilia B or factor IX hemophilia, Christmas disease is a rare genetic disorder in which your blood does not clot properly. A common symptom is unexplained or excessive bruising.

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38

Medullary Cystic Disease

Medullary cystic kidney disease (MCKD) is a rare condition in which small, fluid-filled sacs called cysts form in the center of the kidneys. These cysts scar the kidneys and cause them to malfunction. In order t...

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39

Malaria

Malaria is a life-threatening disease. It's typically transmitted through the bite of an infected Anopheles mosquito.

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40

Hookworm Infections

Hookworms are parasites that affect the small intestine and lungs. The first sign of infection is usually a rash where the parasite entered the skin, followed by diarrhea.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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