Birthmark can be treated in plastic surgery hospital, and removing birthmark is strictly a kind of micro-plastic surgery. Black birthmarks are generally difficult to treat, so it is very important to choose the appropriate treatment. There are many kinds of birthmarks. There are two ways to remove birthmarks, one is surgery and the other is non-surgery. Surgery usually removes hemangioma or nevus. Non-surgical operations such as laser are generally nevus OTA, coffee spot, nevus flammeus, etc.