&NA;A young mentally retarded patient with self‐abusive behavior managed to dissect between the mucosa and muscularis layers of the anal canal, through the anus, using his fingers; he managed then to strip the mucosal‐submucosal layers of his rectum and colon all the way up to the splenic flexure and presented with an unusual two‐yard long “rectal prolapse” which was actually stripped colorectal mucosal‐submucosal tube. Diagnosis and management of this unusual patient are discussed. The authors could not find any similar case report in the English Medical literature.