However, those with the misfortune to be born to the purple involved in porphyria--a group of diseases ... organs before being excreted in feces and urine (which may turn a port-wine color).

People also thought those with porphyria drank blood because of the reddish-purple color of their urine caused by chemical buildup. Some types of the disease can also lead to gum recession and ...

Some porphyria patients, whether acute or cutaneous, may also have a reddish-purple or brown colored urine due to the presence of excess porphyrins. Porphyria can be difficult to diagnose since ...

Purple urine bag syndrome (PUBS ... Differential diagnoses comprise hematuria, porphyria, and medications. Treatment options include antibiogram-based infection therapy, elimination of ...

These, particularly the blue colour, are hardly evidence of the purple urine that is associated with porphyria. One researcher has proposed that the blue may have been due to an extract of the ...