It is not recommended to extract the teeth by yourself, the extraction of teeth by yourself may lead to infection due to poor sterilization or trauma due to improper operation, as follows. 1. Inadequate sterilization: The instruments used in regular medical institutions need to be strictly sterilized before they can be used. If the instruments used for extracting teeth by yourself are not strictly sterilized, there are various kinds of bacteria or viruses on the surface of the instruments, which may lead to infections. 2. Improper operation: without professional learning and training is unable to complete the correct operation of tooth extraction, may cause alveolar bone fracture, gum tear, maxillary sinus traffic, mandibular canal damage and other adverse effects. If you need to extract a tooth, it is recommended to go to the hospital to receive regular professional treatment.