Ear hole refers to a hole formed by opening a hole in the ear through an external scheme. In fact, according to national regulations, even the project of ear piercing belongs to the medical scope because it needs to pierce the skin. Many clubs engaged in normal beauty are not qualified, let alone jewelry stores. There are also some ethnic minorities in the south who will have their ears pierced at birth. Whether it's a boy or a girl, boys usually have one. When they are one year old, the old man will bring them silver earrings, which represents the blessing and protection for their children. Children with status will have bigger earrings. Its scientific principle is based on an "auricular acupuncture therapy" in ancient medicine in China, that is, small fine needles, intradermal needles or other methods are used to treat diseases. Modern medicine has proved that there are acupoints in the middle of the earlobe, and stimulating it has a good effect on protecting vision and preventing and treating many eye diseases such as sty, acute conjunctivitis, senile cataract and central retinitis. , especially for myopia.