White pus inside the foreskin of a 1-year-old baby may be caused by the presence of foreskin scale and may also be caused by glans penis. 1. circumcision: due to the male baby due to congenital prepuce, may be inside the foreskin will appear circumcision scale, may be formed similar to white pus material, no other clinical manifestations. 2. circumcision: male babies after birth will have congenital circumcision, circumcision inside the foreskin will generate circumcision scale, a long time without cleaning, may breed bacteria, when the bacterial infection is more serious, will lead to white pus inside the foreskin, accompanied by itching, pain and other symptoms. 1 year old baby white pus inside the foreskin, and there are other obvious abnormalities, it is recommended to take the baby to the doctor for examination and treatment, to avoid causing adverse effects.