Male private white spots mainly refers to the penis and scrotum white spots, and local mucosal lesions are closely related, common causes include infection, vitiligo and trauma. 1. infection: generally fungal infection is more common, after infection will cause local inflammatory reaction, and will cause white attachments, cause corresponding changes. 2. Vitiligo: mainly due to a variety of causes of skin pigmentation disease, lesions will gradually aggravate, most of them will be accompanied by head, neck and face of the white spots. 3. trauma: after trauma, local damage, tissue repair after the formation of scarring, can also lead to local white spots. When white spots appear on the private parts of men, accompanied by obvious itching and continuous aggravation of symptoms, it is necessary to consult a doctor in time to confirm the diagnosis of the disease and then do standardized treatment.