A six-year-old child’s light nosebleed may be caused by factors such as coagulation dysfunction and acute rhinitis. 1. Coagulation dysfunction: the general body’s coagulation dysfunction, may also appear in patients with symptoms of nosebleed, at the same time may be accompanied by dizziness, fatigue, poor concentration and other symptoms. 2. Acute rhinitis: due to acute rhinitis patients, long-term nasal secretion stimulation, easily induced nasal mucous membrane erosion, resulting in capillary rupture bleeding, thus causing six-year-old children nosebleeds. At the same time accompanied by sneezing, nasal itching, nasal congestion and other symptoms. A six-year-old child’s nosebleed, there may be other reasons such as dry rhinitis, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.