There are many hazards of long foreskin. First, the glans penis is wrapped in foreskin for a long time, which will lead to an increase in the sensitivity of the glans penis for a long time, thus causing premature ejaculation. In addition, patients with long foreskin, the inside of foreskin and glans penis, secrete a lot of scales every day. If this scale is not cleaned up in time, it will lead to balanitis, so the patient's glans appears red, swollen, itchy and painful. Therefore, patients with long foreskin can go to the urology clinic or andrology clinic of the local hospital for surgical treatment, which is circumcision.