Patient information: Female 0 years old Shenzhen, Guangdong Description of the disease (onset time, main symptoms, etc.): When my daughter was first born, most of her back to her buttocks were all black moles, and now she also found hair appearing. At the same time, other parts of her body were also small black moles of different sizes, some with hair, some without, and on her scalp. Now just seven months old, new small moles started to appear on the hearts of hands and feet at four or five months old, which did not exist on the hearts of hands and feet at birth. And they became bigger rapidly. Now it has stabilized and has not become bigger. But there are some small moles appearing in other parts of the body. What kind of help do you want: I want to know how we should treat it and how big is the appropriate treatment. Previous treatment and any allergies, genetic history: We have been to the dermatology department of the children’s hospital when we were just a full month old, and we were advised to go to plastic surgery when we were a little older. There are no allergies at this time. Neither of our parents have a history of genetic predisposition in this area. Her back is all black and the skin can easily break and bleed. In addition, according to our comparison of other mole-free areas, we found that the skin of the back mole area is thin and feels like only one layer. Guidance: Good for you! If the mole does not grow fast, you can wait for more time to treat it, after all, the surgery needs general anesthesia, and the older you are, the safer the general anesthesia is, if the mole grows fast, then you have to treat it earlier, the difference is that the early scar is small, but the surgery risk is bigger, and the late scar is bigger, but the surgery is safer, this is a comprehensive trade-off. The main thing is that the child’s body should be healthy, the risk of surgery will be small prognosis is also fast.