ArticleHealthcare (Basel, Switzerland)2023
Purple Urine Bag Syndrome in a Home-Dwelling Elderly Female with Lumbar Compression Fracture: A Case Report.
Article in Healthcare (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 4 citations in OpenAlex.
- A Unified Framework for Spinal Cord Injury Repair: Metabolic-Nutritional Microenvironment Remodeling, Immune Modulation, and Neural Regeneration.Molecular neurobiology · 2026Review
- Long-term impact of gastrointestinal risk stratification management on perioperative digestive complications in elderly osteoporotic vertebral fracture patients: a 10-year interrupted time series study.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- More than Just a Bag-Purple Urine Bag Syndrome as a Manifestation of Vulnerability in Geriatric Patients: A Case Report.Clinical practice and cases in emergency medicine · 2026Article
- Purple Urine Bag Syndrome as a Visual Trigger for Overtreatment: A Case Report and Aggregated Literature Analysis.Cureus · 2026Article
- When the Urine Bag Turns Purple: A Benign Manifestation in a Chronically Catheterized Elderly Woman.Cureus · 2025Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purple urine bag syndrome (PUBS) is an uncommon, but usually benign, underrecognized clinical condition with the distressing presentation of purple, blue or reddish discoloration of a patient's catheter bag and tubing in the setting of catheter-associated urinary tract infections (UTIs). PUBS is the result of the complex metabolic pathway of the dietary essential amino acid tryptophan. Its urinary metabolite, indoxyl sulfate, is converted into red and blue byproducts (indirubin and indigo) in the presence of the bacterial enzymes indoxyl sulfatase and phosphatase. The typical predisposing factors are numerous and include the following: female gender, advanced age, long-term catheterization and immobilization, constipation, institutionalization, dementia, increased dietary intake of tryptophan, chronic kidney disease, alkaline urine, and spinal cord injury (SCI). Here, we present a case of PUBS in a home-dwelling elderly female patient with a history of long-term immobility after a pathological spinal fracture, long-term catheterization, constipation, and malignant disease in remission. Urine culture was positive for
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