Abstract
BackgroundPurple color of urine is alarming and may indicate a serious underlying pathology. Purple discoloration of the urinary catheter bag is uncommon and is caused by urinary tract infection with certain organisms.Case presentationWe present a case of this rare phenomenon in a benign prostate hyperplasia patient with indwelling catheter who also has diabetes mellitus and chronic renal disease. We also discussed proposed etiology and pathophysiology of purple urine bag syndrome.ConclusionAttempt to make the patient catheter free after stabilizing the patient is also the key point in its management. Although purple urine bag syndrome is not an aggressive pattern, it is an indicator for urosepsis.
Highlights
Purple color of urine is alarming and may indicate a serious underlying pathology
Tryptophan is converted to indigo or indirubin by sulfatases or phosphatases produced by urinary bacteria
Purple discoloration of the urinary catheter bag is relatively uncommon. It is caused by urinary tract infection with certain organisms in patients with certain features
Summary
Purple color of urine is alarming and may indicate a serious underlying pathology. Purple discoloration of the urinary catheter bag is uncommon and is caused by urinary tract infection with certain organisms. Background Purple urine bag syndrome (PUBS) is the color of the urine bag rather than discoloration of urine following urinary catheterization for hours and days Predisposing factors are chronic constipation, use of laxatives, prolonged urinary catheterization, alkaline urine pH, tryptophan-rich foods, renal failure, and cognitive disorders.
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