In life, if a patient has a bloody nose, there are three main reasons to consider. The first kind of patient is chronic rhinitis, there is often a lot of nasal snot inside the nose patients feel nasal congestion is obvious, uncomfortable, sometimes will be particularly hard to blow the nose, it is easy to cause the rupture of the nasal mucosa, so the patient’s nose will often have blood inside. The second situation mainly considers that the patient’s nasal mucosa is particularly dry, and sometimes when picking the nostrils accidentally, it is especially easy to cause the nasal mucosa to rupture, so that there will be blood in the nose. In the third case, the patient is considered to have certain lesions in the nasal cavity, such as deviated nasal septum, or necrotic polyps in the nasal cavity, or more seriously, swelling formation in the nasal cavity. Therefore, if a patient has a bleeding nose, it is best to go to the hospital for a detailed examination to rule out any occupying changes. If it is simply a dry nasal mucosa or caused by chronic rhinitis, it can be resolved by medication.