What causes solitary rectal ulcer syndrome?

The cause of isolated rectal ulcer syndrome has not been clarified, mainly considered to be related to rectal prolapse, rectal injury, pelvic floor muscle abnormalities, etc.

1.

Patients with rectal prolapse may cause pressure increase of the anterior rectal wall due to rectal mucosal ptosis, which may promote mucosal compression ischemia and necrosis, resulting in isolated rectal ulcer syndrome.

2. Rectal injury

, transrectal prostate massage, abdominal surgery, etc. Damage to rectal blood vessels may also cause mucosal damage and form ulcers.

3. Pelvic floor muscle abnormalities

Patients with abnormal pelvic floor muscle activity may cause pressure increase of anal canal due to pelvic floor muscle spasm, resulting in anal canal contraction and mucosal compression necrosis, resulting in isolated rectal ulcer syndrome.