It is important to identify the cause of a piece of flesh missing from the gums and then treat it accordingly depending on the cause. A piece of flesh missing from the gums may be caused by periodontitis, trauma, and may also be caused by gum surgery. 1. Periodontitis: chronic inflammation of the periodontal tissues will lead to gum recession, gums less a piece of meat, if the gums of the back teeth, does not affect the aesthetic, can only treat periodontitis, to prevent the gums from continuing to shrink, small, need to be treated by gum transplantation, through the surgery of the palate side of the gums to the lip side, to repair the gum defects, accompanied by dental allergies, but also need to carry out desensitization treatment of the teeth. 2. Trauma: Trauma causes cracks in the gums, which may also result in a missing piece of flesh. If the gum loss is small, it can be sutured directly. If the gum loss is large, it is difficult to be sutured directly, so it can be sutured after the gum grafting. 3. Gum Surgery: After Gingiva Tumor Surgery: When a gingiva tumor is surgically removed, the scope of removal will be appropriately large, and a portion of the gums will be removed, resulting in a situation where the gums are missing a piece of flesh. As long as the alveolar bone is not defective, most of the gum loss may grow back gradually. However, after the surgery, you need to take care to prevent infection and avoid eating foods that are too hot and too hard.