The precautions after tooth extraction include stopping bleeding from the wound in time, eating a light diet and maintaining oral hygiene. 1. Stop bleeding in time: after tooth extraction, there is a deeper extraction fossa, the wound may continue to bleed, and you need to pay attention to bite the cotton ball within half an hour after tooth extraction to stop bleeding and protect the wound. It is recommended to eat only after 2 hours after tooth extraction to avoid stimulating the wound to cause bleeding. 2. Daily light diet: after the extraction of teeth need to pay attention to light diet, avoid eating spicy and stimulating food, so as not to cause wound infection. At the same time, do not eat food with too high temperature, which will easily lead to capillary expansion and is not conducive to hemostasis. 3. Maintain oral hygiene: After the extraction of teeth need to pay attention to 24 hours temporarily do not brush the teeth and gargle, so as not to cause stimulation of the wound caused by bleeding. From the second day after the extraction of teeth to pay more attention to oral hygiene, to avoid food residues, not timely clean up the wound bleeding infection. Smoking and drinking have adverse effects on wound healing, so it is recommended not to smoke and drink for the time being after tooth extraction. It is recommended that you do not smoke or drink for the time being after tooth extraction. Doing the right things as prescribed by the doctor after tooth extraction will help the wound to heal quickly.