Nosebleeds in two-year-old children are mainly considered to be caused by the following reasons: firstly, they are caused by thrombocytopenic purpura, and these children have nosebleeds caused by a drop in platelets, which have the function of clotting blood. If the platelet drop is very obvious, it will cause the child to have frequent nosebleeds or bleeding from other parts of the skin and mucous membranes. If the platelet count in the routine blood test drops significantly, the child can be diagnosed with nosebleeds caused by thrombocytopenia, and medication such as glucocorticoids should be given to the child in a timely manner. The second is caused by dry nasal cavity, these children often have dry nasal cavity or accompanied by symptoms of chronic rhinitis, the child’s dry nasal cavity, coupled with hand rubbing nose, picking nostrils, will lead to nosebleeds. It is necessary to drink more warm water and carry out rhinitis treatment in order to carry out the control treatment of nosebleeds.