Two-year-old babies love nosebleeds for the following reasons: First, the nasal mucosa blood vessels are more brittle, so when the child encounters some relatively hard things in contact with the nasal cavity, it is easy to nosebleed, even when the child’s body temperature is hot at night, it is also easy to rupture the nasal mucosa blood vessels, resulting in nosebleeds. Secondly, there is a possibility of rhinitis, especially allergic rhinitis, which causes children to like to dig their nasal cavity, thus causing nosebleeds. These two are relatively common phenomena, and are also relatively normal physiological nosebleeds, which generally do not require special treatment. However, if the nosebleeds are recurrent and generally difficult to stop, you need to check the coagulation function to rule out thrombocytopenia and other hematological disorders, otherwise, in some cases, nosebleeds may also be hematological disorders.