There is not much risk in the vast majority of cases when you don’t remove stitches after a tooth extraction. Generally, we will do 1 suture for the more traumatic extractions. However, nowadays, the suture technology and suture materials have improved a lot compared to the traditional ones, and a large part of the sutures for the oral cavity are now absorbable. It takes about a week for the suture to dissolve in the oral cavity, so there is no need to remove the suture itself. However, if the suture is performed with the traditional black mousse thread. This kind of thread is indeed non-absorbable, but even if it is not removed, the vast majority of mousse threads will continue to grow with the epithelial tissues in the oral cavity, and the patient’s continuous chewing, and ultimately most of these threads will be loosened and fall off, or be spit out by the patient, or directly into the patient’s digestive tract, and through the anus, the emergence of the problem of infection due to the suture, which is relatively rare clinically. However, if the patient’s application is determined to be non-absorbable mousse thread, and the patient is in a position to remove it, it is generally recommended that it be removed after one week, because the suture itself will have a certain foreign body sensation in the oral cavity.