The most common kind of disease is mixed hemorrhoids, for example, mixed hemorrhoids are so serious that they can be blocked at the anal opening, so that it is not easy to solve when trying to solve the stool, and there are hemorrhoids in the anus and the stimulation of feces, so the feeling of falling is more obvious. Another disease is the prolapse of the rectal mucosa, caused by age or long-term constipation and other factors, the rectal mucosa is loose and accumulates around the anus and rectum, so that the mucosa is not easy to unclog when relieving stool, but the accumulation is easy to cause a feeling of blockage and obvious falling sensation in the anus and rectum. There are also some rare diseases, such as polyps in the anus or adenomas of the rectum, large anal papillomas, and possibly malignant tumors. In this case, the anal opening is blocked, which also causes the stool not to come out, but the anal opening has a significant downward and swelling sensation. The specific identification of these diseases should be done by professional doctors or experienced doctors in the field of anorectal medicine, or by sigmoidoscopy or anoscopy, to prevent confusion of various symptoms and to avoid delaying your condition.