Dry socket is a common type of post-extraction complication that cannot be completely prevented today even with the advanced medical technology. There is a wide variation in the incidence of dry socket in the literature, with most reports ranging from 5%-30%. The clinical manifestations are mainly severe pain 2-3 days after extraction, which may radiate to the auriculotemporal region, mandibular region or the top of the head, and the pain is not relieved by general analgesic drugs. The cause of dry socket is unclear and may be related to infection, trauma, smoking, local anatomical factors, oral contraceptives, postoperative staying up late, overexertion, etc. It has also been reported in the literature that the incidence of dry socket can be effectively reduced by using minimally invasive extraction methods, but combined with the author’s experience, even if the extraction is very minimally traumatic and minimally invasive, there is still a certain chance of dry socket, which brings some pain and trouble to the patient. Even if dry socket occurs, patients do not have to worry about it, as the treatment is very simple and will recover quickly after being treated by the doctor.