The possible causes of red glans and broken skin are glans inflammation and damage due to trauma. The former can be treated with medication, and the latter two should suspend sex and rest. 1. Glans: If men usually do not pay attention to genital hygiene, plus the foreskin is too long, leading to excessive accumulation of foreskin scale, bacterial growth, triggered by the foreskin glans. At this time, it is recommended to pay attention to genital hygiene, often wash the penis with water, and can be applied under the guidance of the doctor ointment, such as erythromycin ointment. 2. Damage due to trauma: because of the external blow or sex life is too violent resulting in damage to the epidermis of the penis, it is recommended to rest more, do not have sex in the near future. At the same time attention. Eat more vegetables and fruits, drink more water, and eat a light diet. You can take oral vitamin B, vitamin C and trace elements under the guidance of the doctor, which is conducive to the repair of the epidermis of the glans.