The pain in the glans after ejaculation may be caused by glansitis, prostatitis, seminal vesiculitis and other diseases. 1. glans: the glans is infected by external pathogenic bacteria will cause congestion and swelling, which may lead to glans pain after ejaculation. 2. Prostatitis: When you have prostatitis, you may experience ejaculatory pain, accompanied by testicular swelling and pain. 3. Spermatitis: Mostly due to urethritis and other diseases, retrograde infection, resulting in infectious diseases of the seminal vesicle glands, causing abdominal swelling, pain may also lead to semen containing pathogenic bacteria, which is manifested in the phenomenon of pain in the glans after ejaculation. After ejaculation glans pain, there may be other reasons, you need to go to the hospital in time to check, clear cause of the treatment as prescribed by the doctor.