Most of the moles appear on the foreskin because of the localized pigmented cell hyperplasia of the foreskin, and the repeated friction of the corresponding parts can easily cause cytopathy, which can be surgically excised, and the specific excision methods mainly include direct excision as well as split excision. 1. Direct excision: Generally the size of nevus is relatively small (width less than 1.5 cm, width between 1.6~2.5 cm, aspect ratio more than 3:1), radical excision can be considered. 2. Sub-excision: some lesions are relatively large in size (width greater than 2.5 cm, width between 1.6~2.5 cm, aspect ratio less than 3:1), and cannot be completely cut cleanly at one time, so sub-excision can be done. Pigmented nevus on the foreskin, found that the lesion continues to increase in size, need to consult a doctor in time for observation, after confirming the diagnosis of the condition under the guidance of the clinician standardized treatment.