Blood in the stool: all possible causes

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Carlos Laforet Coll
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All the causes of the presence of blood in the stool and the tests to be done.

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The presence of blood in the stool it is certainly not a sign to be underestimated. And if hemorrhoids or fissures are among the "milder" causes of a rectal bleeding, there are also other sometimes decidedly more serious reasons why this particular type of problem could arise. For this reason, in any case, it is always necessary to contact your own medical health insurance.

A first distinction that is generally made in the first analysis is the one based on color of the blood itself: if the blood is colored dark red or pitch blackcolorectal cancer is possible. If, on the other hand, the blood is bright red, leaks rarely occur and the causes can be many. In any case, no alarmism, but a medical consultation and certain analyzes.



Blood in the stool, the diagnosis

To make an accurate diagnosis cannot be other than the doctor, which will first of all check for the presence of fissures or hemorrhoids external. He will then have to explore the anus for any abnormalities in the lower rectum and anus itself.
If deemed appropriate, proceed to one colonoscopy, an examination of the inside of the colon carried out under sedation. Alternatively, one might be prescribed sigmoidoscopia, useful for evaluating the presence of internal hemorrhoids or anal fissures.

Blood in the stool, the causes

Among the causes of anal bleeding, hemorrhoids are undoubtedly the most common. They are the swelling of blood vessels found in the anus and rectum and can be internal or external. Anal fissures can also cause bleeding and are due to constipation and excessive hardness of the stool or inflammation of the anus or diarrhea. There are other causes such as proctitis, polyps, colorectal cancer or rectal ulcers.

Blood in the stool and hemorrhoids

Le hemorrhoids they are the most frequent cause of blood in the stool, they do not give pain but only a huge discomfort. In this case, the blood comes out only during the evacuation. Hemorrhoids are in turn caused by diarrhea or constipation, but also by the habit of lifting weights often or sitting for a long period of time or by pregnancy.


Blood in the stool and anal fissures

Little ones cuts on the anal mucosa caused by excessive hardness of the stool, by constipation (in this case it is generally recommended to simply take fiber supplements and softening laxatives) or by diarrhea or even by inflammation. The problem with fissures is that not only promote rectal bleeding, but during the evacuation they often give rise to a pain very strong that remains so even in the following moments.


Blood in the stool and polyps

Polyps that develop on the inside of the colon are benign tumors (to be removed however) in most cases asymptomatic. The only thing is that they could result in stool blood if they are in the lower colon and rectum.

Blood in the stool and diverticulitis

Abdominal pain, fever, dysentery, chills, nausea, vomiting, and even bleeding are symptoms of diverticulitis, which is the swelling of diverticula, small sacs found in the lining of the large intestine and colon. A diet richer in fiber could help solve the problem.

Blood in the stool and proctitis

Proctitis is an inflammation of the mucous membrane of the rectum and rectal bleeding is among the most common symptoms, as well as pain in the anus area and the passage of mucus from the rectum.

In summary, blood in the stool can be due to:

  • hemorrhoids
  • anal fissures
  • diverticula
  • intestinal infection (gastroenteritis)
  • proctitis
  • polyps

Other causes of blood in the stool:

  • ulcer
  • perianal abscess
  • anemia
  • typhus
  • salmonella
  • gonorrhea
  • colitis
  • chlamydia
  • cirrhosis of the liver
  • cervical cancer
  • kidney failure
  • Ebola
  • Chron's disease

Germana Carillo

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