After wisdom teeth removal, stitches are usually removed after 1 to 2 weeks. For blocked or buried maxillary and mandibular wisdom teeth, stitches are required after wisdom teeth removal. These wisdom teeth have a large wound after removal, so patients are advised to review the wound after 3 days to prevent infection. Meanwhile, the extraction wound is recovered by the blood clot mechanization and calcification in 1 to 2 weeks, so the sutures are chosen to be removed in 1 to 2 weeks. At the same time, it should be noted that after the removal of wisdom teeth need to bite the gauze for 40 minutes, within two hours of fasting and water, eat warm and cool food after the extraction of teeth, not brushing and rinsing within 24 hours, do not lick, suck the wound and so on. It is recommended that patients have their wisdom teeth removed in a regular hospital dentistry to prevent some unnecessary post-operative complications.