White dots under the head of the penis may be caused by unclean sex, pearly penile papules, condyloma acuminatum, circumcision and glans penis. 1. unclean sex: if you don’t pay attention to cleanliness before sex, have purulent secretions or suffer from other infections, white dots under the penis head may appear. 2. pearly penile papules: if the patient’s foreskin is too long, personal hygiene is relatively poor, the coronal infection of the foreskin, local irritation and other factors, leading to the emergence of patients with white dots under the head of the penis, usually without complications, with mild itching when there is inflammation. 3. Condyloma acuminatum: the disease is mainly caused by human papilloma virus infection, patients will appear white dots under the penis head, manifested as keratinized plaques, papules around the genitals, papillary or cauliflower pattern superfluous organisms and so on. 4. Circumcision and glansitis: This disease is a reaction of swelling and inflammation of the foreskin and head of the penis, mainly due to infection and various external irritating factors, triggering white dots under the head of the penis, accompanied by symptoms such as congestion, swelling and itching of the head of the penis. It is recommended that patients go to the hospital in time, under the diagnosis of the doctor, according to the patient’s specific condition, take targeted treatment, pay attention to personal hygiene in life, and actively cooperate with the doctor’s treatment.