Pearly genital rash mainly refers to pearly penile papules, which is a common benign skin disease related to prolonged foreskin and poor hygiene; it can subside on its own in some people, and usually requires no special treatment. The specific cause of pearly penile papules is not clear, when the foreskin is too long, it can lead to the accumulation of foreskin scale causing local irritation, thus the disease occurs; if the local hygiene is poor, it can be due to the accumulation of secretions, dirt and other long-term stimulation of the disease; this disease often occurs in young adults. The genital area of the pearl rash is mainly manifested as 0.5 ~ 1mm or so light red, white papules, the number of more but will not be fusion, and will not appear itching, oozing and other abnormal manifestations; lesions often occur around the coronal groove of the penis. However, it should be noted that this kind of skin lesions need to be identified with warts and other sexually transmitted diseases, and it is recommended that the relevant people consult a doctor in time. This is a benign disease, and in most people, the lesions can subside on their own after improving the corresponding risk factors, without special treatment. For those who have a strong desire for treatment, it is recommended to go to the hospital for circumcision and laser therapy to eliminate the pimples and improve the predisposing factors.