It is best to have wisdom teeth removed during pregnancy preparation because if pericoronitis occurs during pregnancy, it can be complicated and tricky for doctors to deal with and can easily induce life-threatening conditions for the pregnant woman and her fetus. As the jaw bone becomes smaller due to human evolutionary factors, there is a lack of wisdom teeth eruption position, and many wisdom teeth grow ectopically, obstructed, and buried, which can easily cause food residues to remain and not be easily cleaned, resulting in pericoronitis. During pregnancy, as the estrogen and progesterone of pregnant women are higher than normal, the environment in the mouth will be more sensitive to local stimulation and the symptoms will be more severe than in other patients, so it is recommended that wisdom teeth must be removed when preparing for pregnancy.