Nasal congestion in the morning can be caused by colds, chronic simple rhinitis, vasomotor rhinitis and allergic rhinitis. 1. Cold and flu: If you don’t cover up when you go to bed at night, getting up in the morning with cold and flu symptoms can also lead to nasal congestion, accompanied by sneezing, runny nose, and even a sore throat. 2. Chronic simple rhinitis: rhinitis can cause the nose to become blocked in the morning, which can make the patient feel particularly uncomfortable. 3. Vasomotor rhinitis allergy: due to the allergic stimulation of the cold air in the morning when you get up, there will be a series of symptoms such as nasal congestion, runny nose, sneezing and so on. 4. Allergic rhinitis: the nerve excitability increases after getting up in the morning, and the allergic reaction is caused by the allergen stimulation, and the phenomenon of nasal congestion in the morning. When patients frequently appear nasal congestion after timely diagnosis and examination in the hospital, after the cause of the disease is clear under the guidance of the doctor for appropriate treatment.