If half of your wisdom teeth are rotten, they should be extracted immediately. Since people are eating more and more fine food nowadays, the jawbone is smaller than people in the past, so incomplete eruption and ectopic growth of wisdom teeth, also known as obstructed wisdom teeth, can occur. If half of the wisdom tooth is rotten, it is easy to form a blind pocket with residual food, causing inflammation and infection to occur, leading to pericoronitis of the wisdom tooth. If wisdom tooth pericoronitis occurs, it will cause swelling of the surrounding soft and hard tissues, pain, decay of neighboring teeth, loosening of neighboring teeth, and periodontitis. Therefore, in this case, it is necessary to consult a hospital in time to perform pericoronal rinsing of the wisdom tooth to remove the infected material in the blind pocket, and then after the acute inflammation period is relieved, the wisdom tooth should be extracted immediately to eliminate future problems.