There are two types of nosebleeds, one is nasal mucus mixed with blood i.e. bloody nasal mucus. Many of us are more sensitive to bleeding, so we pay more attention to bloody nasal mucus. What are the causes of blood in nasal discharge? The common ones are acute rhinitis, dry rhinitis, atrophic rhinitis, nasal foreign bodies, nasal stones, sarcoid ulcers and tumors, etc. Therefore, when there is blood mixed in the snot you should go to the hospital and the doctor will give you a detailed examination of the nasal cavity, sinuses and nasopharynx in order to find out the cause. Especially, tumor. Early symptoms of malignant tumors in the back of the nasal cavity and nasopharynx are often bloody nasal discharge. The second type is epistaxis – collectively known as rhinorrhea. The severity of nasal bleeding varies from a few drops of bleeding that can be cured without treatment to a fierce one that has a tendency to come out in a flood. Even in the nose bleeding at the same time, the mouth is also bleeding, those through the back of the nostril into which such serious nosebleeds if not treated in time, will soon cause shock. This often occurs in hypertension, blood disorders, and advanced tumors. Rhinorrhea is particularly common in children and adolescents, and its incidence is much higher than that of adults. The reason for this is that there is a part of the nasal septum below the front that is rich in small blood vessels, and this part has a special structure that develops gradually after birth, i.e. the Little’s zone. nasal bleeding in middle-aged and elderly people over 40 years old occurs mostly at the posterior end of the nasal cavity. Statistics show that nasal bleeding in the Little area accounts for 40%-52% of nasal bleeding cases. The mucosa in this area is very thin and inelastic, and the blood vessels are close to the front end which can be easily damaged by a slight external force, thus often causing bleeding. In addition to the cause of the nose itself, some medical diseases such as hypertension, heart disease, rheumatism, blood disease, etc. can cause nasal bleeding. In short, for pediatric rhinorrhea should find out the cause, the right medicine, treatment can be effective. Children should avoid the bad habit of picking their nostrils and avoid external force. Do not panic if bleeding has already occurred. Plug the nostrils with clean cotton, then pinch the nostrils on both sides with your hands and press slightly, the bleeding will stop after a few minutes. Other causes of bleeding in addition to attention to local treatment, should also actively diagnose and treat systemic diseases, in the event of massive bleeding must promptly go to the hospital.