Purplish glans is the appearance of purple in this area of the coronal sulcus, which usually recovers. Normally, the color of the glans is darker when it is localized in the coronal groove. If the edge of the male glans is purple, it is because the penis continues to be erect, the erection time is too long, the venous blood in the vascular sinus of the glans accumulates in the glans for a long time, resulting in the edge of the penis glans becomes purple. After ensuring sufficient rest, the edge of the glans is purple. This condition can disappear on its own without special treatment; if the edge of the glans becomes purple due to incarceration caused by the prepuce, it can be restored by manual repositioning or after circumcision. When such clinical symptoms appear, it is recommended to go to the regular hospital for relevant examinations. It is recommended to pay attention to personal hygiene for men with long foreskin, and circumcision should be performed as soon as possible for circumcision patients.