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Rectal Prolapse Associated With Chronic Ketamine Misuse: A Report of Two Cases.

Mariam A Omar, Muhammad Ishfaq, Rajasundram Rajaganeshan, Michael S Floyd

Cureus August 2026 DOI: 10.7759/cureus.114526 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Case report Peer reviewed
Sample size 2
Population Young adults with ketamine-induced uropathy
Topics Esketamine Ketamine
Keywords Ketamine-induced cystitis Ketamine-induced uropathy Pelvic floor dysfunction Pelvic floor dyssynergia Rectal prolapse
Key findings The authors suggest that chronic ketamine misuse and severe urinary tract dysfunction may be associated with secondary pelvic floor strain and subsequent anorectal pathology, including pelvic floor dyssynergia, internal rectal intussusception, solitary rectal ulcer syndrome, and full-thickness rectal prolapse. They propose that clinicians should consider ketamine use in young adults presenting with rectal prolapse.

Abstract

Chronic ketamine misuse is a well-recognized cause of ketamine-induced uropathy (KIU), characterized by severe lower urinary tract symptoms and markedly reduced bladder capacity. Its potential association with anorectal dysfunction remains poorly described. We report two young adults with KIU who developed progressive pelvic floor dysfunction and anorectal pathology ranging from pelvic floor dyssynergia and internal rectal intussusception to full-thickness rectal prolapse (RP). Both patients experienced severe urinary frequency, suprapubic pain, and chronic straining to void. One patient developed solitary rectal ulcer syndrome with Grade III internal rectal intussusception, while the other developed full-thickness RP requiring colorectal assessment. These two case reports suggest a possible association between chronic ketamine misuse, severe urinary tract dysfunction, and secondary pelvic floor strain with subsequent anorectal pathology. Clinicians managing KIU should be alerted to evolving anorectal symptoms, and recreational ketamine use should be considered in young adults presenting with RP.

Comparable studies

Other case reports and case series on ketamine, most cited first.

Study Year Design Participants
The destruction of the lower urinary tract by ketamine abuse: a new syndrome? Young recreational abusers of street-ketamine in Hong Kong referred to urology units 2008 Retrospective case series n = 59
Electroconvulsive Therapy, Ketamine, and Esketamine in a Patient with Major Depressive Disorder and Multiple Comorbidities: A Case Report over 10-year Treatment from Adolescence to Adulthood. A patient with treatment-resistant depression and comorbid generalized anxiety... 2025 Case report n = 1
Treatment of compulsive behaviour in eating disorders with intermittent ketamine infusions Chronic and treatment-resistant eating disorder patients 1998 Case series n = 15
Oral Administration of the NMDA Receptor Antagonist S-Ketamine as Add-On Therapy of Depression: A Case Series Four depressed patients taking standard antidepressants 2009 Case series n = 4
A longitudinal case series of IM ketamine for patients with severe and enduring eating disorders and comorbid treatment‐resistant depression Patients with enduring eating disorders and treatment-resistant depression 2021 Case series n = 4

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