What Would Cause Urine To Turn Purple?

What Would Cause Urine To Turn Purple? Purple urine bag syndrome (PUBS) is rare disease entity, occurs predominantly in constipated women, chronically catheterized and associated with bacterial urinary infections What bacteria causes purple urine? Purple urine bag syndrome. The most common bacteria responsible for this phenomenon are Pseudomonas aeruginosa, Eschericha coli, Proteus mirabilis, Providencia rettgeri,