Jaw protrudes out in the medical sense refers to anti-mandibular, which can be corrected by general treatment, surgery and other ways. 1. General treatment: patients with anti-mandibular should pay attention to oral hygiene in daily life and avoid eating hard objects, so as not to affect the therapeutic effect. You can use maxillary archer movable orthodontic device under doctor’s guidance, and use interactive traction to correct tilted teeth, which can effectively improve the phenomenon of protruding chin. 2. Surgery: If conservative treatment is ineffective, patients can choose anti-mandibular orthodontics for treatment. Surgery is to make an incision in the mouth, after peeling and exposing the bone tissues layer by layer, the maxillary bone will be backward as a whole, or the excessively protruding part of the mandible will be removed and backward as a whole, so as to achieve the purpose of correcting the antomandibular, thus to improve the protruding chin situation. For patients with anti-mandibular, it is recommended to go to a regular hospital and choose the appropriate correction method according to their own situation under the guidance of the doctor. After undergoing the correction of anti-mandibular, it is necessary to conduct regular review to observe the growth of the jawbone, so as to avoid the recurrence of the disease.