Where should birthmarks appear?

From the joke about where to place birthmarks, we can see that people keep away from birthmarks. Everyone knows the historical figure Yang Zhi, the green-faced beast. In fact, he was a patient with blue birthmarks. Because of his vicious appearance, he suffered To the fear of the world, he has become a representative of adultery and eradication of evil. Just imagine if Yang Zhi lives in modern society and the birthmark grows on his face, how much impact it will have on his growth, work and life. If he is a girl, If the birthmark appears on the face, how will her life change? Where is the best place to place the birthmark? In the past, it was traditionally said that a birthmark on the face would bring bad luck, a birthmark on the back would bring bad luck, a birthmark on the abdomen would bring good luck, etc. Today, with the development of science and technology, and the abandonment of feudal ideas, birthmarks can be very harmful to people. Some patients have changed their entire lives because their birthmarks did not receive thorough and effective treatment in infancy. They are negative, introverted, Autism, etc. are all consequences of birthmarks, and birthmarks are good wherever they grow. It can be said that birthmarks that are not harmful to the patient are good anywhere, but birthmarks that are harmful to the patient are not good anywhere.