Blowing the nose hard for a long time may cause damage to the nasal mucous membrane, which is easy to cause repeated nosebleeds and infections; it is also easy to cause the nasal mucous membrane to flow backward into the throat and ear, causing throat and ear infections. 1. Nasal mucous membrane damage: the nasal barrier is mainly composed of nasal mucous membrane, and nasal mucous membrane is easily damaged by external factors, if you blow your nose hard for a long time, it may cause repeated damage to the nasal mucous membrane, which may cause repeated nosebleeds, nasal discharge with blood and other symptoms. 2. Easy to cause middle ear and throat infections: If there is a certain degree of nasal cavity and sinus inflammation and infection-related symptoms, prolonged forceful nose blowing may lead to the retrograde entry of inflammation or nasal mucus into the middle ear or throat, thus triggering acute inflammatory episodes in the middle ear or throat. Therefore, if there are long-term discomfort symptoms in the nasal cavity, it is recommended to consult a doctor for timely examination and symptomatic treatment under the guidance of a doctor. It is not recommended to blow your nose hard for a long time, otherwise the risk of nasal mucous membrane damage and nasal infection will increase.