The causes of gum abscesses are as follows: 1, root inflammation: root inflammation triggers gum abscesses, dental inflammation needs to be treated, if the gum abscess is extensive, incision and drainage is required; 2, periodontitis leads to: the need to remove the dental calculus, soft scale around the teeth, foreign bodies removed clean, the inflammation of the gums will slowly subside. If the abscess is widespread, incision and drainage should be performed and anti-inflammatory drugs should be used; 3. Wisdom tooth eruption leads to: it occurs in patients between 18 and 35 years old, due to the eruption of wisdom teeth in the gums around the food blockage, which leads to gum abscess, incision and drainage or local rinsing should be performed, after the inflammation subsides, then the doctor will decide whether to remove the wisdom teeth.