Case Report
2022 March
Volume : 10 Issue : 1

Purple urine bag syndrome in catheter associated urinary tract infection: A case report

Pannala K, Panda A, Keshri SP

Pdf Page Numbers :- 39-41

Keerthi Pannala1, Arabind Panda1,*, and Shyam Prasad Keshri1


1Department of Urology, Krishna Institute of Medical Sciences, Secunderabad-500003, Telangana, India


*Corresponding author: Dr. Arabind Panda, Senior Consultant in Urology and Renal transplantation, Department of Urology, Krishna Institute of Medical Sciences (KIMS), Secunderabad-500003, Telangana, India. Email:


Received 5 October 2021; Revised 29 November 2021; Accepted 9 December 2021; Published 20 December 2021


Citation: Pannala K, Panda A, Keshri SP. Purple urine bag syndrome in catheter associated urinary tract infection: A case report. J Med Sci Res. 2022; 10(1):39-41. DOI:


Copyright: © 2022 Pannala K et al. Published by KIMS Foundation and Research Center. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Purple urine bag syndrome (PUBS) occurs in catheterized patients with bacterial urinary infections that produce sulphatase/ phosphatase. The presence of indigo and indirubin pigments, which are tryptophan metabolites, causes the purple coloring. After antibiotic therapy, the purple colour reverts to normal. We present a case report of unusual phenomenon occurring in a 60-year-old woman with carcinoma cervix. She did not have fever, constipation or a history of medication administration. She presented with purple urine in her indwelling long term supra-pubic catheter bag and sought a consultation with an urologist because the urine in her urine bag had changed color to purple. Awareness about PUBS will prevent unnecessary investigation and over treatment.


Keywords: purple urine bag syndrome; urinary tract infection; indigo and antibiotic therapy