Background: Rectal prolapse (RP) predominantly affects women over the age of 50 and presents as mucosal, internal, or full thickness prolapse. Strangulated rectal prolapse requires immediate medical intervention, and surgical treatment options include both abdominal and perineal approaches. We aim to present a case series of perineal rectosigmoidectomy performed urgently due to strangulation and argue that Altemeier’s procedure is the preferred method for treating strangulated rectal prolapse. Methods: Perineal rectosigmoidectomy, particularly Altemeier’s procedure, is effective for incarcerated cases. Altemeier’s procedure with diverting ileostomy was used in all three patients. Results: All patients were successfully treated, with no recurrence of prolapse and stool incontinence. Conclusions: Altemeier’s procedure is ideal for the treatment of strangulated rectal prolapse.