There is a small red pimple on the glans, but it doesn't itch, it doesn't hurt. What disea

There are small red bumps on the glans, but no itching and pain may be caused by contact dermatitis, balanitis, genital herpes and other diseases. 1. Contact dermatitis may be caused by exposure of the glans to insecticides, chemical raw materials and other irritants, resulting in the destruction of the skin barrier on the penis, causing allergic reactions. Local skin papules appear but are not accompanied by other clinical symptoms. 2. Balanitis If the patient does not pay attention to personal hygiene at ordinary times, it is easy to cause pathogenic bacteria such as streptococci and Staphylococcus aureus to invade the body, causing irritating damage to the mucosal tissue of the glans, resulting in abnormal skin growth but no pain and itching symptoms. 3, genital herpes may be due to friction damage local skin mucosa in the process of sexual contact, leading to patients infected with herpes virus, virus erosion around the glans skin tissue, causing red skin pimples but not painful. In addition to the above common diseases, it may also be condyloma acuminatum, syphilis, AIDS and other causes. It is suggested that patients with abnormal growth in glans should go to the hospital as soon as possible to check the cause, and actively cooperate with the medical staff after clarifying the cause.