After coitus, if the external genitalia localized a little crack, it is recommended to go to the hospital for examination, according to the specific situation and symptomatic treatment: first, if the degree of cracking is relatively minor, its length is not more than 10mm, the depth is not more than 2mm, it is recommended to apply Baiduobang or external erythromycin ointment, regular observation can be, this kind of superficial fissure can be about 5-7 days to achieve the state of healing. However, you need to go to the hospital for regular checkups to observe the local healing dynamically. Secondly, if the length of the crack is more than 10mm and the depth is more than 2mm, it is recommended to go to the hospital for suture treatment if necessary. Otherwise, the healing time is slow, or the healing process is relatively long, during which there may be infections. After the suture is completed, local topical povidone-iodine can be used to disinfect the area, or topical Bactroban can be used to prevent infection. Third, if there is a male ligament tear, you need to go to the hospital for treatment. Tears in the ligament can cause localized scarring of the ligament, resulting in penile curvature, it is recommended that according to the specific situation of cracking, if necessary, to give local suture treatment.