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Bright red blood in stool

What does bright red blood in stool mean?

Why is the blood in stool bright red? The presence of bright red is the fresh blood in the stool, which usually occurs with bleeding in the lower intestines (colon, rectum) or anal canal. The greater the amount of bleeding, the higher the frequency of occurrence of bright red blood in stool. However, if the blood stays in the large intestine for a long time, bright red blood turns dark red.

Generally, dark red blood mixed inside the stool indicates the bleeding source is in a higher part of large intestine or any part of the small intestine.

However, bright red blood which adheres to the surface of the stool is a character that the blood comes from the last part of colon, rectum, anal canal.

If the bright red blood drops out after bowel emptying, or squirts out into toilet bowl and stains the toilet bowl water red, or shows up on the toilet paper after wiping your anus, it is usually a result of bleeding from anal canal or rectum.

Thus, assessing the color, amount of the blood in the stool is important for diagnosis.

Bright red blood in stool causes

Fresh bright red blood usually comes from low gastrointestinal tract, caused by anal fissures and hemorrhoids.

Bright red blood in stool no pain

The bright red blood in stool no pain is mainly seen in patients with hemorrhoids. Not always the case, if a hemorrhoid complicated with thrombosis, incarcerated, infection, pain occurs.

That can be also caused by rectal polyps, rectal cancer. During the process of defecation, no pain is felt.

Last update: 2012-07-05