Vitamin A Treatment for Recurrent Urinary Tract Infections in a Post-Roux-en-Y Gastric Bypass Patient: A Case Report

Abstract

This case describes a 35-year-old female who developed recurrent urinary tract infections (UTIs) after Roux-en-Y gastric bypass surgery. Cystoscopy and biopsy revealed severe keratinizing desquamative squamous metaplasia (KDSM) of the urinary tract. Further evaluation uncovered deficiencies in vitamins A, D, and E, with vitamin A deficiency suspected as the primary contributor to urinary symptoms and night blindness. High-dose vitamin A supplementation, along with other micronutrients, resolved both urinary and visual symptoms, and follow-up cystoscopy showed restoration of healthy epithelium. This case highlights the importance of comprehensive micronutrient assessment in post-bariatric patients with recurrent UTIs.