Purple urine bag syndrome (PUBS) is a rare phenomenon in patients that is associated with the use of a long-term/indwelling urinary catheter. The purple color results from indigo and indirubin, accumulated from bacteria-mediated tryptophan conversion. High risk patients include: the elderly; women; immobilized patients; patients with an indwelling catheter, chronic constipation, alkaline urine or poor hygiene; and those with catheter bags and tubes made of certain types of plastic. We reported PUBS in an elderly woman with an indwelling catheter and chronic constipation which, to our knowledge, was the first case in our hospital. The patient underwent urinary catheter change and received intravenous ciprofloxacin, following which the urine returned to a yellow color and the patient was discharged. This case report describes the diagnosis, management and also strategies for the prevention of PUBS in Gatot Soebroto Army Hospital, Indonesia.