Bleeding gums of children can be caused by mechanical injury, local inflammation, blood diseases, etc. It is recommended to consult a doctor in time. 1. Mechanical injury: such as toothpicks stabbing the gums, hard objects bruising the gums, brush bristles are too hard, brushing too strong, fish splinters embedded in the gap, etc., can make the gums are damaged, inducing bleeding gums. 2. Local inflammation: such as gingivitis, inflammation can make the capillaries in the gum area congested and dilated, if local stimulation, it is very easy to rupture and bleed, which is manifested as bleeding gums, and children can also be accompanied by pain in the gums, redness, swelling, bad breath and other symptoms. 3. Hematological diseases: such as aplastic anemia, leukemia, hemophilia, etc., bleeding gums are often manifested as bleeding in many places, and children can also be accompanied by skin petechiae, nosebleeds, blood in joints, hemoptysis, vomiting of blood, local hematomas and other uncomfortable symptoms. If your child has bleeding gums and the symptoms are not relieved by lifestyle adjustments or are accompanied by other discomforts, he or she should consult a doctor to identify the cause of the problem and follow the doctor’s instructions for appropriate treatment.