Is it normal for the urethra opening to be black?

Diseases of the urethra are a type of disease that has a greater impact on the human body and are mainly caused by problems with the urinary system. Blackening of the urethral opening is a symptom of many urinary system diseases, which can cause severe discomfort in people's genital area. If not treated in time, it may even affect people's fertility. So, what is the reason for the blackening of the urethra?

[Normal color of the urethral opening] Under normal circumstances, the color of the male urethral opening is slightly redder than that of the glans penis. The red color does not exceed the outer edge of the urethral opening. It is naturally closed and there is no swelling, secretion, pain, etc. The surface layer of the male urethra is the mucous membrane, which is very rich in capillaries. There are urethral glands in the anterior urethra. They have many glandular ducts opening into the urethral mucosa and can secrete colorless and transparent mucus to keep the urethral opening moist.

1. Local and environmental factors cause the urethra to turn black

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. Wearing clothes that are too tight in winter can also cause blood congestion in the local capillaries at the top of the glans, causing poor blood flow back, so it appears slightly black. As long as you wear loose clothes and pay attention to local hygiene, it will slowly be absorbed.

2. The stimulation of excessive foreskin or phimosis causes the urethra to turn black

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 urethra

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.