Children with constant nosebleeds are considered to be due to dry indoor environment, inflammation of the nasal cavity, and repeated picking and digging of the nostrils. If the bleeding is difficult to recover or the episodes are particularly frequent and heavy, the child’s coagulation function should be observed in the ENT department and further diagnosis and treatment should be made. 1. Dry indoor environment: Dry indoor environment will lead to dry mucous membrane of nasal cavity, which will lead to the brittleness of blood vessels, and then it will be easy to have nosebleeds. 2. Inflammation of the nasal cavity: generally inflammation stimulates the mucous membrane of the nasal cavity, which will cause vasodilatation, and at the same time, inflammation will also damage the mucous membrane, causing blood vessels to rupture, which will lead to nosebleeds. 3. Repeatedly picking the nostrils: often repeatedly picking the nostrils will lead to mucous membrane erosion in the nasal vestibule area, and blood vessels are exposed in the erosion of the mucous membrane outside, easy to touch and then lead to bleeding symptoms. Children’s nosebleeds can also be caused by other reasons (such as leukemia, etc.), it is recommended for different causes, targeted treatment. Usually, you should eat more vitamin-rich fruits and vegetables, strengthen physical exercise, improve physical fitness, and develop good living habits.