There are many reasons for nasal bleeding, the most common ones are as follows:
1 , cold or rhinitis: In such diseases, the nasal mucosa is swollen and crusty, and the nasal cavity is uncomfortable, so if there is rubbing of the nose or even digging of the nostrils, bleeding can easily occur, and in severe children, if the nasal mucosa is crusty, spontaneous bleeding may even occur.
2 , foreign body: children are naughty, foreign body stuffed for a long time or foreign body is relatively large, it is easy to bleed;
3 , diseases: such as leukemia, thrombocytopenic purpura and some other diseases, nasal bleeding is often more powerful and easy to bleed repeatedly, as well as other manifestations of related diseases.