Wisdom tooth pericoronitis is an inflammation that occurs in the dentition of the human third permanent molar. 1. Wisdom teeth are generally referred to as human third permanent molars, which are permanent molars that erupt after the age of 18. Wisdom teeth are often blocked or incompletely erupted due to insufficient space for eruption. Blind pockets can be formed on the surface of the wisdom tooth crowns, and food and bacteria are easily embedded in the blind pockets, which will cause wisdom tooth pericoronitis when the body’s resistance decreases. 2. Clinical manifestations of wisdom teeth pericoronitis, acute stage may have localized gum redness, swelling, pain and restriction of mouth opening. In severe cases, the whole body may have cold, fever, headache and other symptoms. In the chronic stage, there may be mild pressure and pain discomfort. 3. The treatment of wisdom teeth pericoronitis in the acute stage is local rinsing, giving systemic antibiotic treatment, such as cephalosporin, metronidazole, etc.; if an abscess is formed, then incision and drainage is given; after the acute inflammation subsides, it should be removed as soon as possible after the blocked wisdom teeth that can not be erupted. Suffering from wisdom teeth pericoronitis, should consult the doctor in time, complete the examination, standardized treatment under the guidance of a professional physician, so as to avoid delaying the condition, resulting in adverse consequences, the use of drugs need to comply with the doctor’s instructions.