Family members are constantly asking about their children’s nosebleeds through the Internet or on the phone, especially those parents who have been to many hospitals and whose children have been on many medications but their nosebleeds are still not getting better. In the conversation, you can feel the anxiety and helplessness of the parents, fearing that their children have some serious disease. Pity the parents! In fact, this kind of feeling can be fully understood by doctors. In fact, there are three sources of nosebleeds: one is artery; two is vein; three is capillary. There are also three points of identification: arterial blood is red in color and quantity; venous blood is purple in color and quantity is small; capillary blood is dark in color and quantity is small. This simple generalization still has some guiding significance for dealing with nosebleeds. In fact, there are many causes of rhinorrhea, including systemic factors such as increased blood pressure, increased vascular permeability and coagulation dysfunction (such as hypertension, heart disease, acute febrile infectious diseases, chronic liver and kidney diseases, blood diseases, nutritional deficiency, poisoning and endocrine disorders), and local factors such as trauma, nasal septal deviation, nasal-sinus inflammation and tumors. For pediatric rhinorrhea, according to the author’s experience, the most frequent causes are dry rhinitis, nasal-sinus inflammation, trauma, blood disorders and tumors. When a child has a nosebleed for the first time, we should pay attention to the child’s mental state in addition to the bleeding itself. If the bleeding is accompanied by depression, fatigue, yellowing and loss of appetite, the child should seek medical treatment as soon as possible. Although there is nosebleed, but the child is in good spirits, can eat and love to move, suggesting that there is no serious injury, can be relaxed to seek medical attention. Ninety percent of the nasal bleeding in children is in the lower part of the nasal septum, which is rich in blood vessels and superficial, so the nasal cavity is dry, itchy and digging, and the blood vessels can easily expand and rupture and cause bleeding. If this situation is not corrected in time, the bleeding will recur, forming a vicious circle. The solution is still relatively simple, such as quitting nose-digging habits, local use of sesame oil, compound peppermint oil, gentamycin eye ointment, etc.; however, when the above treatment still cannot control nasal bleeding, practice has proved that closing the bleeding point with silver nitrate beads or chromic acid cautery is a simple and easy effective method.