White pimples on the foreskin may be related to penile pearly rash, prepuce glans, warts and other causes. 1. Penile pearly papules: mainly manifested as translucent small papules visible to the naked eye in the penile area, can also be distributed on the tethered cord and penile body, usually no conscious symptoms, more unintentionally found, generally no need for treatment. 2. circumcision: the foreskin can appear red, swollen, itching, rash, ulcers and other symptoms, can be manifested as white pimples on the foreskin. 3. Condyloma acuminatum: If the foreskin area is infected with human papilloma virus, white pimples can appear, soft, top, gradually increasing, expanding, fusion. It is recommended that people with white pimples on the foreskin go to the hospital in a timely manner to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.