Why is blood coming from the anus: possible causes

Isolating blood from the anus is not that rare. This symptom is characteristic of many diseases. At the same time, few people from the same problem know exactly why blood comes from the anus.

One of the most common causes is hemorrhoids. This disease is a pathological process that develops as a result of varicose veins located along the end of the rectum. In this case, hemorrhoids can be both congenital (in this case, most often it is external), and acquired. The development of this disease is often associated with a decrease in physical activity of a person in everyday life, weakness of venous walls, any conditions that can increase pressure in the pelvic cavity, as well as in the abdominal cavity. In this case, the development of hemorrhoids is usually observed when all the factors listed above occur. One of the characteristic signs of this disease is the presence of scarlet blood. Most often it can be seen directly on feces or toilet paper. This is due to the squeezing of the hemorrhoids during defecation, which prevents blood from flowing out. Why is blood coming from the anus at hemorrhoids? Everything is very simple. Varicose veins are unable to withstand increased pressure (most often with excessive straining during defecation), their walls are damaged, and blood is released into the cavity of the rectum.

If we talk about hemorrhoids, then it is by no means the only disease in which blood from the anus can appear. The reasons can be completely different. One of the most common is anal fissure. It is often it is the reason why the blood comes from the anus. It is worth noting that the anal fissure can develop if the mucosa of the anal sphincter is subjected to unnecessarily coarse mechanical action. The most common cause of its occurrence are constipation, anal sex, as well as various manipulations with the help of hard objects in the anus. It is accepted to distinguish between chronic and acute anal fissures. At the second variant there is a blood from an anus absolutely not for long. Most often it can be found only on toilet paper. Such an anal fissure can disappear on its own. As for the chronic variant of this disease, it can become a response to the question of why blood is coming from the anus for a longer time. This pathology is most often treated surgically.

Apparently, the most dangerous disease that can manifest itself in the allocation of a particular amount of blood from the anus is cancer, localized in the large intestine. Why is blood coming from the anus in this disease? The thing is that a cancerous tumor is destroyed in time. In addition, it is able to be damaged by the colonic masses passing through the thick intestine, especially if the person is constipated. In this case, blood can be released together with feces, but it is rarely mixed with it.

More rare causes of why blood is coming from the anus are diseases such as Crohn's disease, as well as NNC (ulcerative colitis). Both of these diseases, in addition to pathological secretions of blood along with feces, have another, sufficiently developed clinic. It is primarily about pain, bloating and diarrhea.

In any case, if a person notices that he sometimes has blood after or during a bowel movement, this should alert him and force him to turn to specialists who will conduct a full diagnosis and prescribe the appropriate treatment.