Wisdom teeth can not open the mouth, indicating that in the acute inflammatory period, this time can not be extracted. Wisdom teeth, due to insufficient eruption space, manifested as covered gum tissues are prone to food impaction and bacterial accumulation, thus triggering inflammation. Under normal circumstances, the degree of opening is about 3 horizontal fingers. When wisdom teeth are inflamed, it can lead to swallowing pain, restricted opening and other symptoms, which cannot be extracted at this time, as it will cause inflammation to spread and lead to aggravation of the condition, and need to control the inflammation before extraction. Wisdom teeth extraction, but also to avoid fasting, women to avoid physiological period, some patients with a combination of systemic diseases, to control the condition, to maintain stability before extraction. It is recommended that you explain your condition in detail to your physician before removing your wisdom teeth to determine if they can be removed. Some wisdom teeth are difficult and risky to remove, it is recommended to go to a regular hospital stomatology department.