The possible sequelae of wisdom teeth extraction include nerve injury, temporomandibular joint injury, mandibular fracture, etc. The details are as follows. 1. Nerve injury: when extracting teeth, the corresponding innervated area may be numb or have burning, tingling and other abnormal sensations because of pulling, touching and cutting the inferior alveolar nerve, chin nerve and lingual nerve during the operation. 2. Temporomandibular joint injury: dislocation may occur due to excessive opening for a long time; shaking, hammering and chiseling during extraction of mandibular wisdom teeth may cause discomfort, pain and even limitation of opening of temporomandibular joint. 3. Mandibular fracture: Mandibular fracture can occur due to violent tooth extraction when removing the mandibular third molar. It is recommended to visit a regular medical institution to receive professional treatment.