Urinary myiasis associated with ureteral stent placements.

An adolescent with recently removed ureteral stents and exposure to toilet water contaminated with sink flies developed urinary myiasis after stent removal. Poor hygiene, urinary obstruction and retention and decreased general health are known risk factors for developing urinary myiasis. Good hygiene and sanitation practices should be emphasized to patients with indwelling urogenital foreign bodies such as ureteral stents.