Paget cites an instance of blue saliva due to staining the tongue in the same manner.

Most cases of anomalous coloring of this kind can be subsequently traced to artificial substances unconsciously introduced.

Crocker mentions a woman who on washing her hands constantly found that the water was stained blue, but this was subsequently traced to the accidental introduction of an orchid leaf.

In another instance there was a woman whose linen was at every change stained brown; this, however, was found to be due to a hair-wash that she was in the habit of using.
Among the older writers who have mentioned abnormal modes of exit of the urine is Baux, who mentions urine from the nipples; Paullini and the Ephemerides describe instances of urination from the eyes.
Blancard, the Ephemerides, Sorbalt, and Vallisneri speak of urination by the mouth.

Arnold relates the history of a case of dysuria in which urine was discharged from the nose, breasts, ears, and umbilicus; the woman was twenty-seven years old, and the dysuria was caused by a prolapsed uterus.