Rectal prolapse (RP) is a rare condition presenting as a partial or complete protrusion of the rectum or as mucosa through the anal canal, and it usually occurs in the elderly or females with multiple risk factors. An initial presentation of incarcerated RP is even rarer. We present a case of a previously healthy 39-year-old man who presented with an incarcerated RP that necessitated urgent perineal proctosigmoidectomy (Altemeier procedure), with diverting sigmoid colostomy, followed by a reversal of the colostomy three months later. This case highlights the importance of surgical management (the modified Altemeier procedure) for a patient with an incarcerated RP. There are no specific guidelines for management of RP; all the recommendations and latest approaches are patients-based approaches according to their presentations, risk factors, age, and gender.