Wisdom teeth are usually not extracted 4 at a time. Wisdom teeth are usually extracted 1 or 2 at a time from the same side and it is not recommended to extract both sides at the same time. Due to the slow development and special location of wisdom teeth, their shape and roots may change. Wisdom teeth are more difficult to remove than normal extractions. Generally, only 1-2 wisdom teeth can be extracted on the same side at a time, and some patients have very weak resistance, so one will usually be extracted first, and then the remaining wisdom teeth will be extracted after a period of time. Patients should not rinse their mouth or brush their teeth within 24 hours of wisdom teeth removal, otherwise it will aggravate the negative pressure in the mouth, leading to the rupture of the blood clot causing bleeding. It is important to protect the blood clot after wisdom teeth removal to avoid postoperative bleeding and infection. It is recommended that patients pay attention to oral hygiene in general, regular care, do not eat spicy and stimulating food. It is recommended that patients go to the hospital under the guidance of the doctor reasonable tooth extraction.