When I poo there is blood

Finding blood in your stool or on toilet paper after wiping can be alarming, but it's often due to minor conditions like hemorrhoids or anal fissures. However, it can sometimes indicate more serious issues. This article explains the most common causes, when to seek medical attention, and what tests doctors use to diagnose the problem.

Common causes of blood in stool

Blood in stool can come from anywhere along your digestive tract, from your mouth to your anus. The color of the blood can give clues about where it originated:

Bright red blood: Usually comes from the lower digestive tract (rectum or anus). Common causes include hemorrhoids, anal fissures, or diverticulosis.
Dark red or maroon blood: Often indicates bleeding in the colon or small intestine.
Black, tarry stool (melena): Suggests bleeding higher up in the digestive tract, such as the stomach or esophagus. This happens because the blood has been digested and broken down.

Hemorrhoids and anal fissures

Hemorrhoids are swollen veins in the rectum or anus, while anal fissures are small tears in the skin around the anus. Both can cause bright red blood on toilet paper or in the stool. Hemorrhoids may also cause itching or discomfort, while anal fissures can lead to sharp pain during bowel movements.

These conditions are common and usually not serious. Treatment includes increasing fiber intake, staying hydrated, and using over-the-counter creams or suppositories. If symptoms persist, a doctor can recommend further treatment options.

Diverticulosis and diverticulitis

Diverticulosis occurs when small pouches form in the colon wall, which can become inflamed or infected (diverticulitis). Bleeding from diverticulosis is usually painless and results in bright red blood in the stool. Diverticulitis, however, often causes abdominal pain, fever, and nausea.

Mild cases of diverticulitis may improve with rest, hydration, and antibiotics. Severe cases may require hospitalization or surgery.

Inflammatory bowel disease (IBD)

Conditions like Crohn's disease and ulcerative colitis cause chronic inflammation in the digestive tract, leading to symptoms such as bloody diarrhea, abdominal cramps, and weight loss. These conditions require long-term management with medication and, in some cases, surgery.

When to see a doctor

While finding a small amount of blood in your stool may not always be urgent, certain symptoms warrant immediate medical attention:

Large amounts of blood or blood that lasts for several days.
Blood accompanied by severe abdominal pain, dizziness, or fainting.
Blood in stool along with weight loss, fatigue, or changes in bowel habits.
Blood in stool after an injury or fall.

If you experience any of these symptoms, consult a healthcare provider. A doctor may perform tests such as a colonoscopy, sigmoidoscopy, or blood tests to determine the cause of the bleeding.