Wisdom teeth extraction is recommended not to smoke, mainly because smoking is not conducive to wound hemostasis, and may cause infection to the wound, and is not conducive to wound healing. 1. Not conducive to wound hemostasis: generally recommended within 24 hours after tooth extraction, it is best not to suck hard such as smoking and sucking milk tea and other beverages, mainly in order to avoid the elevated negative pressure leads to the destruction of the blood clot in the extraction of the fossa and fall off, thus causing more than the wound bleeding problem, not conducive to wound hemostasis. 2. Wound infection: the wound in the mouth after tooth extraction is an open wound, improper care can easily cause wound infection. Smoking smoke contains nicotine and other harmful substances, these harmful substances into the extraction socket can easily lead to wound infection, thus causing redness, swelling and pain in the wound and other problems. 3. Not conducive to wound healing: after wisdom teeth extraction, the gums and alveolar bone need a period of time to form regeneration, and smoking because of the need for frequent sucking action and smoking is not conducive to human health, so smoking after wisdom teeth extraction is not conducive to a period of wound healing. It is advisable not to smoke after wisdom tooth extraction to prevent excessive bleeding and infection, which may affect the healing process. It is also recommended to quit smoking for health reasons.