The feeling of blockage and suffocation in the anus is mainly considered in the following aspects: first, it may be constipation, constipated patients have dry and hard stools, less water content, coarse and hard, not easy to discharge at the rectum anus and continuous stimulation of the rectal mucosa. The second consideration is proctitis, proctitis patients rectal mucosa red and swollen and scattered erosion points, bleeding points, stimulation of the mucosal nerve will produce the feeling of falling and swelling pain. The third consideration is rectal prolapse, mild prolapse has mucous membrane prolapse, heavy prolapse can have muscle layer prolapse will have blockage suffocating feeling, foreign body feeling. Fourthly, consider severe internal hemorrhoid prolapse, Ⅲ-IV degree internal hemorrhoid can not retract by itself after prolapse, the prolapsed tissue will be embedded in the anus so that the patient has a foreign body feeling, if it does not relieve continuously need to anorectal department consultation.