I can tell you clearly that there is no such plastic surgery technology at present, and even if there is, I don't recommend it. After all, it is a knife on the forehead! Instead of thinking about doing surgery to change the head shape, it is better to work hard on the hairstyle and make a fluffy short curly hair, so that the flat head will not be seen. In addition, learn to appreciate yourself. What happened to the flat head? Many people still like a crew cut. My sister-in-law recently gave birth to a daughter, and she also said that she would let her daughter sleep in a flat head. This shows that the flat head is still very popular.