Objective: Purple urine bag syndrome is a rare entity that appears in elderly patients with long-term urinary catheters with chronic diseases.
Method: We describe the cases of two patients admitted to our service, who serve as example to illustrate this pathology and which process should be followed in its diagnosis and treatment.
Conclusion: Purple urine bag syndrome is a rare entity that occurs more frequently in elderly patients, women, with long-term urinary catheters, whose main factors are debilitating diseases, prolonged immobility and chronic constipation. It should be treated by avoiding the triggering factors, adequate hydration of the patient, antibiotics directly antibiogram therapy and the change of urinary catheter can be evaluated.