Pınar Baydar Yucel, Başak Buldu, Mustafa Polat, Ali Karakus
Acta Medica Ruha - 2025;3(3):146-148
Purple Urine Bag Syndrome (PUBS) is a rare condition resulting from the interaction of indigo (blue) and indirubin (red) pigments -produced via various metabolic pathways from tryptophan -with polyvinyl chloride (PVC) in urinary catheters. Constipation plays a significant role in the pathogenesis. In addition, it may occur in patients with urinary tract infections or those with long -term indwelling bladder catheters. Although it is generally a benign clinical condition, it may be an early indicator of a serio us urinary tract infection .