The whitening and hardening of the foreskin is considered to be related to glans circumcision, and can also be seen in trauma, excessive masturbation, and so on. In case of fungal infection of the foreskin glans, white filamentous or reticular discharge with itching can usually appear. At this time, the foreskin will also be white, and if the inflammatory state persists for a long time, it will cause damage to the skin, resulting in hard scarring. If the chronic foreskin glansitis is caused by other reasons, the foreskin will be thickened and whitened locally under long-term inflammatory stimulation. The foreskin is hard to the touch, while often accompanied by pain during erection. If the patient wears pants that are too tight and too hard, or improper operation during sex, it may cause the foreskin to friction and produce trauma, and the wound will also appear to become white and hard during the recovery process. Patients should pay attention to protect the foreskin in daily life. Excessive masturbation will increase the chance of bacterial infection in the genitourinary system, and excessive masturbation will also damage the skin and mucous membrane of the foreskin, which will make the foreskin white and hard. To sum up, the foreskin becomes white and hard usually consider the cause of pathology, patients should should be timely to the regular hospital urology department when the symptoms appear, so as not to delay the condition. The glans penis can be sexually transmitted, if diagnosed with this disease, patients should avoid sexual intercourse during the period of illness.