The causes of nasal bleeding every morning include dryness of the nasal mucosa, infectious or allergic diseases, nasal diseases, systemic disease factors, etc., as follows: 1. Dryness of the nasal mucosa: Patients may suffer from excessive dryness of the surrounding air and environment, or some polluting and irritating factors, which can easily lead to dryness of the nasal mucosa and bleeding; 2. There may also be a certain degree of inflammation of the nasal cavity, sinus infectious or allergic disease factors, are likely to cause the local mucous membrane of the nasal cavity erosion, ulceration and repeated bleeding; 3, nasal cavity disease: some patients may exist in the nasal septum obvious deviation, or the nasal cavity further appear hemangioma, bleeding polyps and other bleeding-prone growths, also easy to cause nasal bleeding; 4, systemic Influence of disease factors: including hypertension, liver and kidney diseases, blood system diseases, etc. Further detailed examination is required when necessary.