What causes redness and swelling at the urethral opening in men?
Disease description:
My friend recently said he felt discomfort when using the restroom, along with swelling. May I ask, what are the causes of redness and swelling at the male urethral opening?
Doctor's answer (1)
Dr. Luo Yong
Male urethral meatus redness and swelling may be caused by various factors. Sexually transmitted diseases such as gonorrhea and non-gonococcal urethritis can lead to urethral meatus inflammation; gonorrhea is caused by Neisseria gonorrhoeae infection, while non-gonococcal urethritis may be associated with microorganisms such as Chlamydia trachomatis and mycoplasma. Urethral stones moving through the urethra may irritate the urethral mucosa, causing local inflammatory reactions. Urethral trauma and balanoposthitis may also lead to redness and swelling of the urethral meatus. Additionally, patients with prostatitis may experience urethral meatus congestion and edema due to inflammatory factors present in prostatic fluid being discharged through the urethral opening. Local friction, such as from wearing tight underwear, may also cause urethral meatus swelling. If such symptoms occur, it is recommended to seek medical attention promptly to determine the exact cause and receive appropriate targeted treatment.
