As the eruption of wisdom teeth is different for each person, the symptoms of pre-growing wisdom teeth may also differ to some extent. If the patient’s wisdom teeth can grow upright, they are basically in a normal state of eruption, and there may be slight discomfort such as itchy gums, redness and swelling of the mucous membrane, but they can be gradually relieved within a few days, and the symptoms can disappear on their own when the wisdom teeth break the gums, and no special treatment is generally needed. However, most patients have wisdom teeth that cannot erupt normally, which can cause inflammatory lesions in the oral cavity, mainly the following manifestations: 1. Oral ulcers: When wisdom teeth cannot erupt in the normal direction, they may appear to scrape the oral mucosa, which can easily cause oral ulcers. Patients have obvious symptoms such as oral pain, dry mouth, difficulty in eating, and restricted mouth opening; 2. Gum discomfort: If the patient has a mandibular ascending branch, front teeth obstruction, etc., it will cause a lack of space required for the eruption of wisdom teeth, resulting in obstructed growth, and the obstructed wisdom teeth will form blind pockets with the gums. Generally, the blind pockets are difficult to clean and often accumulate food debris, causing bacterial infection and significant gum pain and discomfort for the patient. In addition, if the patient’s own resistance is poor, and the wisdom tooth blind pocket site has bacterial infection, may induce acute wisdom tooth pericoronitis, often accompanied by gum swelling, redness, fever, facial swelling and other clinical manifestations; 3, deep caries: part of the wisdom tooth will be blocked with the gap between the front teeth, after the daily diet there will be food residue, and then breeding plaque, resulting in deep caries phenomenon. And most patients will have obvious pain when eating cold, hot, sour, sweet and other irritating food.