Wisdom teeth are a normal physiological phenomenon, and their growth is also affected by congenital defects and oral environmental factors. Wisdom teeth are called third molars in medical science, and there are 4 of them in the upper and lower jaws. Unlike other permanent teeth, third molars grow naturally at the age of 18 to 26. If there is a congenital loss of tooth germs, some people will only have 1 to 3 wisdom teeth, and some people will not have any wisdom teeth for the rest of their lives. With the evolution of human beings, oral hygiene has become more and more important to everyone, so it is difficult to lose permanent teeth, so there is no room for wisdom teeth. At this time, if people start to grow wisdom teeth, it will cause recurring episodes of peri-coronitis, and often need to be extracted. If you have wisdom teeth, you should go to the regular hospital in time to check your teeth through imaging, so that you can observe the development of teeth in the oral cavity and the situation of blockage.