Dryness of the nose after waking up can be considered as a result of low water intake, environmental dryness, as well as nasal vestibule mucous membrane erosion, dry rhinitis, etc. Further examination is recommended. 1. If you drink less water before going to bed, or if your body is dehydrated due to dry weather, high air-conditioning temperature and other environmental factors, you may experience dry mouth and nose after waking up in the morning. 2. If you have the habit of repeatedly picking your nose, or if you have a deviated nasal septum, which can easily lead to erosion of the nasal vestibule mucous membrane, you will also experience dryness of the nose after waking up in the morning. 3. If there is dry rhinitis, it will also lead to the nasal mucosa can not secrete normal nasal mucus to protect the nasal cavity, thus making the nasal cavity dry, itchy, and if it is more serious, it may also produce pain and other symptoms. Therefore, it is recommended to go to the hospital for further examination to make a clear diagnosis.