What causes the urethra to be a little black?

If you find that the urethra opening appears black, you can first check whether there is pain or other abnormal conditions, because environmental factors can also cause such symptoms. Phimosis, gonorrhea, non-gonococcal urethritis, etc. can cause such symptoms.

1. Local and environmental factors cause black and red urethral opening

The darkening or purple color of the urethral opening may be due to local pigmentation or thrombosis of the superficial veins of the penis. Since the color of the urethral opening is easily affected by blood circulation, local and environmental factors, factors such as hot weather, sitz baths, and strenuous exercise can all cause the urethral opening to turn dark.

2. Red and black urethral opening caused by stimulation from excessive foreskin or phimosis

The stimulation caused by excessive foreskin or phimosis may cause the urethral opening to turn black or purple, but the patient often has no other discomfort and there is no secretion from the urethral opening. Some people often suffer from balanitis, at which time small red spots of varying sizes can be seen on the glans, which are locally moist and itchy. For the above situations, it is recommended to remove the excessive foreskin or phimosis so that the glans penis is exposed and remains dry.

3. Gonorrhea, non-gonococcal urethritis and other sexually transmitted diseases cause black and red urethral opening

The main symptoms of sexually transmitted diseases such as gonorrhea and non-gonococcal disease are abnormal symptoms at the urethral opening, such as urethral stinging, increased secretions, redness, swelling and pus discharge, etc. Severe cases can also cause the urethral opening to turn black. For people who have unclean sexual behavior, if they find that the urethral opening turns black or purple, they should go to a specialist in a regular hospital for examination to obtain a clear diagnosis and regular treatment.