Rhinorrhea is relatively common in children, and the bleeding mostly originates from the Ri area where the anterior part of the nasal septum is rich in vascular anastomoses. common causes of recurrent rhinorrhea in 5-year-old children include: 1. local trauma caused by digging the nostrils with hands, dry air, nasal foreign bodies and rhinitis. 2. rhinorrhea may occur in allergic rhinitis or rhinitis caused by infection. 3. bleeding may also be a systemic bleeding disorder such as hemophilia and thrombocytopenia. local manifestations, and nasopharyngeal tumors in children are relatively rare.4. Any factors that cause nasal vascular congestion, dryness of the nasal mucosa, or irritation of the nasal mucosa can increase the likelihood of bleeding, such as colds and fever.5. In cold, dry conditions, even just rubbing the nose, blowing the nose, or sneezing can easily lead to bleeding from the mucosa of the nasal septum. In acute bleeding, press the nasal wings bilaterally to add pressure to the Lai area, and you should keep pressing the lower 1/3 of the nose for at least 5 minutes, then check whether the bleeding stops, and you can take measures to avoid digging the nostrils, humidify the room and control rhinitis. If the child still has recurrent nasal bleeding, it is recommended to go to the ENT department to check for nasal foreign bodies and other conditions, and if necessary, to check blood routine and coagulation function to exclude bleeding disorders.