1. In general, if the wisdom teeth are fully grown before being pulled out, there is no need to sew. Some people need stitches, because their wisdom teeth are still wrapped in gums, and doctors have to cut the gums to see and pull out the teeth. In this case, stitches are needed after tooth extraction, because the wound is relatively large.

2. Whether the wound site is sutured after wisdom tooth extraction depends on the specific situation and cannot be generalized. If the position of wisdom teeth is not good and there is no possibility of completely normal eruption, it is recommended to remove them as soon as possible. After wisdom teeth are extracted, it is not necessary to sew the wound in most cases. Only when the tooth extraction wound is large, suture treatment is needed, and the suture can be removed about 5~7 days after operation.