Toileting is supposed to be a matter of clearing the body of waste and soothing the intestinal tract, but what if even the things you shouldn’t poop are also pooped out? This is the so-called blood in the stool, which often indicates certain anorectal diseases in the human body.
Blood in the stool is a symptom that varies in color and shape depending on the site, amount and speed of bleeding. Depending on the condition of blood in the stool, you can generally determine the body has those anorectal problems.
Bright blood stool
The most common condition is bright red blood in the stool, which is discharged with the stool or drips after the stool, because the bleeding time is short and the blood is mostly brightly colored, similar to bleeding from trauma.
Hemorrhoids
Both external and internal hemorrhoids can cause blood in the stool. It is generally believed that hemorrhoids are venous clusters formed by the stasis, dilation and flexion of the venous plexus under the mucous membrane of the lower rectum and the skin of the anal canal, which are easily broken during excretion.
Colon polyps
Colon polyps are sarcomas that are raised in the epidermal lumen of the colonic mucosa. Colon polyps are mostly single, smooth and brittle, easily broken by stool and bleeding and ulcerated. Blood in the stool is bright red, and blood mixes with stool or blood marks appear on the surface of stool.
Anal fissure
Anal fissures are cracks in the surface of the narrowest section of the anal canal tissue from the tooth line to the anal verge. Anal fissures present with blood in the stool mostly as dripping blood or blood wiped with a tissue, and rarely with heavy bleeding.
Pus, mucus and blood in stool
The stool contains both pus and blood, and the blood is thin and sometimes contains a lot of mucus. The stool is mostly wet, sticky, and unformed.
Ulcerative colitis: Recurrent inflammation causes degeneration and necrosis of the colonic mucosa and shedding, while new granulation tissue is generated, which leads to bleeding of granulation tissue under intestinal contraction and fecal friction, and blood mixed with feces and shed necrotic tissue becomes mucus, pus and blood stools.
Colon cancer: Malignant tumor erodes the surrounding tissues and obstructs the intestine. If the tumor breaks down and bleeds, it may cause secondary infection. It has the symptoms of persistent, chronic stools with mucus and blood, appearing as pus and blood stools or mucus and blood stools, sometimes accompanied by blood clots and necrotic tissues.
Black stool
Black stools, also called tarry stools, may form when blood stays in the intestine for a long time. The stools are tarry black because the iron in hemoglobin combines with sulfide in the intestine to form iron sulfide.
Upper gastrointestinal bleeding
Black stools are usually caused by bleeding from the upper gastrointestinal tract, and it only takes a few milliliters of bleeding to cause black stools. Common types of upper GI bleeding include bleeding esophageal varices, bleeding gastric or duodenal ulcers.
False black stools
Pseudoblack stools are mainly associated with certain foods and medications that are consumed.
Warm tip: The different conditions of blood in the stool can only roughly determine what is wrong, and is not 100% accurate. If the phenomenon of blood in the stool occurs, it is best to go to the hospital for detailed examination.