Glans coronal pearl rash, also known as coronal papules, is a common external genital skin disease in men, usually appearing near the coronal sulcus, regularly arranged, translucent pearly, occurring in men aged 20-40 years old. Glans coronal pearly rash may be related to circumcision, long-term sexual stimulation or glans inflammation. 1. Excessive foreskin: Excessive foreskin leads to moisture at the glans, which in turn leads to the appearance of glans corona pericardia, and excessive foreskin has to be surgically removed. 2. Long-term sexual stimulation: glans corona pericardia is often seen in patients with frequent masturbation, with the increase in age, the symptoms can be alleviated or disappeared. 3. glansitis: glansitis is a common disease in men, inflammation destroys the physiological structure of the glans, the main symptoms are pimples, glans congestion or increased secretion. Glans coronal pearl rash may also be caused by other factors. It is recommended that patients pay attention to personal local hygiene in daily life, maintain good living habits, quit masturbation to reduce sexual stimulation. Diet should be light, eat more fruits and vegetables, prohibit spicy and stimulating food.