The pearly pimples are small reddish papules that appear around the glans at the coronal groove of the penis. It occurs in young people and adults, usually between the ages of 20 and 40. 35% of normal people will have it, mostly in young people who are circumcised and have masturbation habits. It is a physiological abnormality and is not a sexually transmitted disease. It occurs in young people and adults, usually between the ages of 20 and 40. 35% of normal people have it, mostly in young people who are circumcised and have a habit of masturbation. It is a physiological abnormality and is not a sexually transmitted disease. It may be related to the long foreskin, more circumcision, resulting in chronic inflammatory stimulation. It is often found suddenly after bathing or unclean sexual intercourse and is easily misdiagnosed as condyloma acuminata. How to prevent pearl rash? 1, the suspected allergens should try to avoid contact. 2, papules itching do not scratch hard, otherwise it can cause a significant increase in skin lesions, itching intense. 3, the living environment should be kept clean, dry, etc. 4, the most important thing is that once the symptoms of papules appear, patients should go to a professional dermatology hospital in a timely manner. Treatment if the patient has a long foreskin, circumcision should be done to avoid stimulation of the foreskin scale.