A runny nose on waking up may be physiological factors, or may be caused by allergic rhinitis, vasomotor rhinitis and other pathological factors. ⒈ physiological factors: If the weather is relatively cold or dry, sleeping placed or sprayed stimulating strong perfume, indoor air conditioning temperature is relatively low and other physiological factors can stimulate the nasal mucosa to secrete too much mucus, resulting in a runny nose when you get up, this is a normal physiological phenomenon, usually pay attention to the indoor temperature to ensure that the indoor air circulation. Peculiar factors: (1) allergic rhinitis: allergic rhinitis is mainly caused by genetic, environmental (inhalation of dust mites, pollen, etc.) and other factors lead to a runny nose when you get up, but also can be manifested as nasal itching, paroxysmal sneezing, nasal congestion and other symptoms. (2) vasomotor rhinitis: vasomotor rhinitis belongs to a kind of inflammation of the nasal mucosa, can be caused by autonomic dysfunction, physical (inhalation of dry and cold air, etc.), chemical (irritating gases, etc.), mental (anxiety, nervousness, etc.), etc., in addition to a runny nose when you get up, but also can be manifested as sneezing, itching, nasal congestion and so on. When you get up with a runny nose to exclude physiological factors, you should go to the hospital in time to find out the cause of the disease, and follow the doctor’s instructions for treatment.