What is the reason for black and shapeless stool

Sometimes stool can have many colors, but the most serious one is black stool without shape. It is a particularly serious stool problem, and it also means that there is a big problem with your body. So when your stool is black and without shape, you must pay attention to it to avoid causing serious harm to your body. The following introduces the reasons. You can learn more about it in detail.

Causes of black, unformed stools

Anorectal experts advise that the color, texture, and shape of stool are the best reflections of a person's physical health. Among them, black stool, dry stool, watery stool, and too thin stool are all reflections of disease. Many patients think that black stools are nothing to worry about, and that it is mostly related to diet. They often ignore the existence of intestinal lesions and delay the best time to treat the disease.

Black stool is a manifestation of digestive tract disease

When bleeding occurs in the upper gastrointestinal tract, including the esophagus, stomach, duodenum, upper jejunum, pancreas, and bile duct, the iron in hemoglobin in red blood cells combines with sulfide to form iron sulfide under the action of intestinal bacteria, making the stool appear black.

However, it is important to note that tarry black stools are only a typical manifestation of upper gastrointestinal bleeding. The stool color changes during upper gastrointestinal bleeding are not always tarry, but vary greatly. For example: when the amount of bleeding is relatively small, the change in stool color cannot be detected by the naked eye and can only be detected through special tests; when the amount of bleeding reaches more than 50 ml, the stool color becomes darker, which can be seen by the naked eye. However, in addition to the tarry stools mentioned above, the color of the stools can also turn into brown, reddish brown or even bright red when there is upper gastrointestinal bleeding.

The changes in stool texture, softness and color during upper gastrointestinal bleeding depend entirely on the site of upper gastrointestinal bleeding, the amount of bleeding, the rate of bleeding and the time the blood stays in the intestine. If the amount of bleeding is large and the bleeding speed is fast, and the stool stays in the intestine for a short time, the texture of the stool will become very soft or even close to liquid, and the color may further change from black to reddish brown or even bright red. Typical tarry black stools may only appear when the amount of upper gastrointestinal bleeding is relatively small, the bleeding rate is relatively slow, and the bleeding stays in the intestine for a long time.

Black stools can cause serious harm, so you must pay attention to it to avoid causing serious harm to your intestines and your body. In order to recover as soon as possible, you must first find out the cause and treat the black and unformed stools through the cause. Only in this way can you get normal bowel movements through correct treatment.