Normal gum tissue is pink, tightly wraps the tooth, and does not bleed. The inflamed heels are dark red, edematous, and easy to bleed when touched. The reasons are: 1. Stimulated by calculus, due to incomplete brushing and food residues, hard calculus is often formed around the heels, causing inflammation and congestion of the heels. , the stones should be removed in time. 2. The choice and use of the toothbrush is incorrect, which will cause great mechanical stimulation to the gums, resulting in bleeding from the teeth and heels. A new type of health-care toothbrush should be used, and the vertical brushing method should be used. 3. Stimulated by residual crowns, inappropriate braces (dentures), etc., causing mucosal erosion and bleeding, the residual crowns should be removed and the braces (dentures) corrected. 4. Some women experience tooth and heel congestion and spontaneous bleeding during menstruation, which can usually be relieved after menstruation. 5. Some systemic diseases can lead to bleeding of teeth and heels, and the cause should be identified and dealt with in time. Check your mouth frequently to maintain oral hygiene and prevent bleeding gums.