Nasal congestion without runny nose may be caused by chronic simple rhinitis, chronic hypertrophic rhinitis, deviated septum and so on. 1. Chronic simple rhinitis: refers to chronic simple rhinitis is a reversible inflammation. Common symptoms include nasal congestion, runny nose, accompanied by dizziness and lightheadedness at the same time, but there may be nasal congestion without runny nose. 2. Chronic hypertrophic rhinitis: chronic hypertrophic rhinitis is mostly developed from chronic simple rhinitis. The main symptoms are decreased sense of smell, tinnitus, hearing loss, headache, insomnia, memory loss and so on. There may also be nasal congestion without a runny nose. 3. Nasal septum deviation: Nasal septum structural abnormality caused by nasal ventilation obstacles, can occur nasal congestion but not runny nose. There are many reasons for nasal congestion without running nose, we should go to the hospital in time to find out the cause of the disease and take standardized treatment.