Male urethral urethral erythema should be treated according to the cause of the disease, common factors are glans, urethritis, external stimulation and other factors. Glans is usually based on topical medication; urethritis can be oral or intravenous antibiotics; external stimulation will mostly be self-healing. 1. glans: infected by external pathogenic bacteria, caused by glans will cause urethral urethral urethritis red and swollen, bacterial infections can be topical erythromycin ointment, mupirocin ointment; trichomonas infections, you can use metronidazole gel; Candida infections can be topical clotrimazole ointment, ketoconazole cream, and so on. 2. Urethritis: various pathogenic bacterial infections caused by the urethra inflammatory reaction, can also cause male urethral urethral urethral redness and swelling, most of them will also be accompanied by frequent urination, urinary urgency and other symptoms. Neisseria gonorrhoeae infection caused by urethritis, you can intravenous drip ceftriaxone, ofloxacin and other drugs; if the mycoplasma, chlamydia infection, you can use erythromycin, azithromycin and other macrolide antibiotics. 3. external stimulation: for example, frequent masturbation, excessive sexual intercourse, or squeezed, bruised, etc., can also cause male urethral urethral urethral urethral redness and swelling. Generally pay attention to rest, pay attention to hygiene, most of them will recover by themselves. There may be other causes of urethral swelling, need to actively seek medical examination, early treatment. The medication needs to be used under the guidance of a doctor.