Unusual complication of male urethral catheterization: intussusception of prepuce into urethral meatus

We present a patient who experienced urinary retention with a comorbid phimosis and redundant prepuce, most likely complications of diabetes mellitus. Additionally, we report a rare complication of difficult catheterization, where the prepuce intussuscepted into the urethral meatus. Attempts to change the catheter with poor visualization of the external meatus secondary to diabetic phimosis resulted in telescoping of the prepuce into the urethra. Circumcision and meatotomy of the external meatus alleviated the acute issue and prevented potential problems with future catheterizations.