The clinical manifestations of rectal prolapse mainly involve the contents within the anal canal, especially the prolapse of the rectal mucosa outside the anus, which is most common. Severe cases of rectal prolapse may lead to a cylindrical or conical prolapse. The common type of rectal prolapse mainly refers to rectal prolapse, but there can also be internal prolapse of the rectal mucosa. Internal prolapse of the rectal mucosa is characterized by excessive relaxation and accumulation of the rectal mucosa at the anus, causing symptoms such as a sense of blockage, downward pressure, and obstruction during bowel movements. This can be definitively diagnosed through an anal examination and defecography. Regardless of whether it is internal prolapse of the rectal mucosa or rectal prolapse, when the disease progresses to a severe degree affecting the patient's normal life, surgical treatment is recommended.