anal bleeding
Introduction
Introduction The situation of bleeding during defecation is common for people with anorectal diseases and can easily lead to fear. The cause of anal blood in the stool is theoretically different in the theory of specialist medicine. Anal stool stool blood suddenly appeared bright red, or covered on the surface of the feces, or mixed with the stool, there are also anal bleeding or even blood spurting, or just blood on the toilet paper. Blood in the stool can be caused by small bowel lesions, more sigmoid colon, rectal bleeding. In terms of the nature of the lesion, blood in the stool can occur in tumors, inflammation, deformities, and the like. The brighter the blood color, the closer the bleeding site is to the anus.
Cause
Cause
1. The occurrence of blood in the stool in middle-aged and elderly people, especially the recent emergence of blood in the stool, should be more important than young people. This is because the neoplastic lesions (including benign and malignant) of the sigmoid colon and rectum increase significantly with age.
2, hemorrhoids: When there is a fistula, you can touch the soft nodules at the anus, but you can't touch them. There is a lot of bleeding and it is not mixed with the stool. Sometimes it is only stained with blood on the toilet paper. The bleeding is often related to excessive exertion of the stool or defecation.
3, rectal, colon cancer: in recent years these several diseases have increased significantly, the incidence increased by 2-3 times. At the beginning of the disease, a small amount of blood can be seen covering the surface of the feces. As the disease progresses, the amount of blood in the stool gradually increases, and stools may become thinner, and even intestinal obstruction (no defecation, no venting, vomiting, ablation in the abdomen, abdominal pain) may occur. Feces can have a special odor produced by pus mucus and cancerous tissue. When the symptoms appear throughout the body, such as decreased appetite, weight loss, edema, anemia, etc., it is already in the advanced stage of the disease.
4, ulcerative colitis: blood color or fresh or dark, almost every stool is mixed with blood, pus sticky, often abdominal pain, diarrhea, repeated attacks or prolonged unhealed.
5, large intestine polyps: some are benign, and some are easy to malignant (such as adenomatous polyps, villous adenoma) incidence increased with age, can be single or multiple. The blood in the stool is often intermittent, and the blood color is bright red. Generally, the blood volume is not much, and the blood is not mixed with the feces. There is no special change in the stool itself.
6, colonic vascular dysplasia: more common in the elderly, bleeding more blood, more bleeding, the stool itself has no change.
Examine
an examination
Related inspection
Proctoscopy is routine
Hemorrhoids, anal fissures and rectal cancer can cause blood in the stool, and it is very serious, so it is a small matter not to think that stool bleeding should be decided according to the color of blood in the stool and the state of feces, so as to distinguish the cause of blood in the stool.
The first is that the bright red blood is not mixed with the feces, which is usually caused by anal and rectal bleeding.
Secondly, the bright red blood and feces are mixed. Such diseases are usually gastrointestinal bleeding or some inflammation.
Finally, it is black blood in the stool. This situation is more serious. It is likely to be a high-risk condition such as cirrhosis or cancer.
Diagnosis
Differential diagnosis
