The causes of many small brown moles around the breast include keratosis pilaris, nevus pigmentosus, common warts, etc. Treatment includes medication and surgery. 1. Keratosis Pilaris: If it is Keratosis Pilaris, you need to give retinoids to exfoliate the skin. 2. pigmented nevus: for pigmented nevus formed by pigment cell aggregation, surgical excision treatment can be given at this time. 3. common warts: for human papilloma virus infection caused by common warts, generally can be applied imiquimod cream, 5-fluorouracil ointment for treatment. Finally, the phenomenon of a lot of brown moles around the breast, please go to the hospital in time to check, so please follow the doctor’s instructions.