Nasal congestion, commonly known as nasal discomfort, is one of the common symptoms of nasal diseases. In daily life, when people have nasal congestion, the first thing they think of is rhinitis, and they treat it as rhinitis, but they do not know that nasal congestion is a common symptom of many nasal diseases, therefore, nasal congestion should not be treated as rhinitis. What are the nasal diseases that can cause nasal congestion? And how to treat it? Nasal congestion is commonly caused by rhinitis, deviated septum, nasal polyps, sinusitis, sinus cysts, sinus tumors, adenoid hypertrophy, nasal foreign bodies and other diseases. Therefore, the cause of nasal congestion should be a comprehensive scientific analysis, for different diseases to take different treatment, in order to well solve the nasal congestion. Rhinitis caused by the nasal hormone spray can be cured, rarely need surgery, laser, radio frequency, microwave, ionization and other methods of treatment of rhinitis, has been eliminated, mainly because these methods in the solution of nasal congestion at the same time, will seriously damage the physiological function of the nasal cavity, but also, the efficacy is not sure, not lasting. For those with sinusitis, part of the patients can be cured by nasal hormone spray, and part of the patients need surgery, but it is better to use nasal hormone spray before surgery, which can reduce the scope of surgery, reduce intraoperative bleeding and improve the efficacy. Nasal congestion caused by deviated septum, nasal polyps, sinusitis, sinus cysts, sinus tumors, adenoid hypertrophy, nasal foreign bodies, etc. can only be solved by surgical treatment. The best method is transnasal endoscopic surgery, which is the best technique in rhinology at present. To solve a good solution to nasal congestion, there is another key issue, which is to consider the pathological changes occurring in the nasal cavity as a whole, for example: deviated nasal septum can lead to compensatory hypertrophy of turbinates, which can lead to sinusitis, etc. It is not possible to deal with the septum alone, it is not possible to deal with the inferior turbinates alone, and it is not possible to deal with the sinuses alone. Therefore, there should be a comprehensive assessment after the emergence of nasal congestion in order to make a scientific decision, in order to treat reasonably and to have good results.