Nosebleeds in children are a relatively common phenomenon in life, medically known as epistaxis, which is one of the common clinical symptoms and is caused by a variety of reasons that lead to blood flowing out of the nasal cavity after the rupture of the blood vessels in the nose. It needs to be specifically analyzed according to the cause of nosebleeds and handled in the correct way, as follows: 1. Bad habits: Some children often like to dig their nostrils, which can easily damage the capillaries of the nasal mucosa in the nasal cavity when digging the nostrils, resulting in bleeding from the nasal mucosa. This situation should be first compressed to stop bleeding, pay attention to the usual guidance to children to change bad habits, to avoid again cause nasal injury bleeding; 2, trauma: children in the process of sports are prone to falls or bruises, resulting in damage to the nose, which causes nasal mucosa bleeding in the nasal cavity. This situation requires pressure to stop bleeding, and it is recommended to go to the hospital for professional trauma treatment; 3, malnutrition: when children’s body intake of vitamins or minerals is not enough, the material composition of the mucous membrane inside the nose is poor, and becomes fragile, which in turn easily causes nasal bleeding. It is recommended to control the child’s diet, not to be picky, try to balance the diet, supplement vitamins and minerals, and regulate the child’s body health for a long time; 4. Deviated nasal septum: Due to the unbalanced development of the bones that make up the nasal septum, it can lead to the symptoms of nosebleeds in children, which can also be accompanied by nasal congestion and headache. Parents should promptly take the child to the hospital to ensure that the child’s nasal cavity is moistened, and relevant surgical treatment is feasible; 5. Allergic rhinitis: the nasal mucosa is red and swollen, and the child will rub the nose and sneeze, nasal itching and other symptoms, which leads to the breakage of the nasal mucosa and nosebleeds. It should be treated to stop the bleeding first, and it is recommended to go to the hospital for allergen examination afterwards, and apply anti-allergy drugs, and try to stay away from allergens in general; 6. Bleeding diseases: such as aplastic anemia, purpura, leukemia, gastrointestinal bleeding and other diseases, because platelet abnormalities, coagulation dysfunction and inflammation of the gastrointestinal tract may lead to nosebleeds in small children. If the symptoms of nosebleeds are mild, no treatment is usually needed. Regular review or appropriate daily iron and vitamin supplements are sufficient. If the symptoms of nosebleed are more serious, you need to go to the hospital to stop the bleeding through microwave coagulation, which is a more convenient and flexible way to stop the bleeding, and the effect of hemostasis is better and can reduce the tissue damage to a greater extent.