A urethral fistula is an abnormal tunnel between the urine pipe and nearby skin or organs. It acts like a side exit, so urine leaks where it shouldn’t.

The star sign is extra leakage. You finish voiding, then notice a steady drip from a small hole under the scrotum, on the shaft, or even into the vagina.

Spraying splits the stream. Urine exits both the normal opening and the side hole, making aim impossible.

Wet spots persist. Underwear is damp minutes after you shake, and a faint urine smell clings to skin or clothes.

Infection tags along. The tunnel gets red, tender, and may puff out pus or blood-streaked fluid.

Pain is usually mild but spikes during sex or when the fistula is pressed.

If the fistula connects to the rectum, gas or stool can pass through the urethra—an alarming emergency.