We have a fixed number of teeth, but after a certain age, some people will grow teeth again, or what we call wisdom teeth, when the wisdom teeth will have gum swelling and pain, many people want to know, why will grow wisdom teeth? Wisdom teeth, the scientific name of the third molar. It refers to the four third molars on the alveolar bone inside the human mouth, one on each side. Because these four third molars begin to erupt at the age of about 20, when the physical and psychological development of human beings is close to maturity, it is seen as a symbol of the “arrival of wisdom”, so it is called “wisdom teeth” – the wisdom teeth. -The tooth of wisdom. From a medical point of view, wisdom teeth are a natural part of human evolution. As humans evolve, the jaw slowly shrinks, leaving less room for wisdom teeth in the jaw. In ancient times, it was common for young people to lose their teeth, so there was just enough room for the wisdom teeth to grow, and the wisdom teeth would play their role at this time. If the position is good and the upper and lower bite relationship is normal, then of course you don’t need to pull it. However, if the position is not growing well, you are advised to remove it because, the bad wisdom tooth will bring you some inconvenience later in life, such as inflammation when your own resistance decreases, etc. You can also be told that wisdom teeth are in the mouth and, in general, do not serve any purpose, so their removal will not hinder your oral function. In terms of the growth of wisdom teeth, there is a great deal of individual variation, and it is normal for some people to grow before the age of 20, others to grow at the age of 40 or 50, and some not to grow throughout their lives. Some people may have only one or two wisdom teeth. But there are also people who do not grow wisdom teeth, or only grow one or two. The wisdom teeth of some people are not very regular, and if they are not well protected, they will affect the health of the mouth and possibly other teeth, so they need to be removed in time.