Generally speaking, pigmented nevus is benign. Dermatology and plastic surgery are the main departments of treatment, and plastic surgery is the first choice from the perspective of thoroughness of treatment, and postoperative scars are generally slight; The curative effect of dermatology laser is acceptable, but it will still leave a slight scar with the same area as the original pigmented nevus, so it is more suitable for the treatment of small hairless pigmented nevus, but there is still a certain recurrence rate. Generally, surgical treatment is the first choice for plantar pigmented nevus. After all, lasers have a recurrence rate. Pigmented nevus on the shoulder is large, so surgery is needed for treatment. I wish you a speedy recovery!

Shanghai Huashan Hospital-Dermatology-Qianhui Attending Physician