The best time to treat sebaceous nevus is as early as possible after detection, and can be delayed until adulthood at the latest. Sebaceous nevus itself is a benign skin mass that develops at birth or shortly after birth as a result of hyperplasia of the sebaceous glands, resulting in a raised change that looks like a gyrus. They occur on the head, face and neck, especially at the scalp. It is generally painless and should be removed as soon as possible after detection. Although its probability of malignancy is small, there is still a certain risk of malignancy, which mostly occurs after adulthood, so it is recommended that it be removed at the latest before adulthood, and pathological examination is needed after removal to clarify the nature. During the treatment period, patients are advised to eat a light diet, avoiding spicy and stimulating foods, and pay attention to rest and regular rest and rest to promote the recovery of the wound as soon as possible.