Nasal trauma, deviated nasal septum, sinusitis, nasal polyps and other nasal benign diseases are common clinical diseases and require endoscopic sinus surgery. The proper application of the surgical procedure as well as ensuring high quality of wound healing, is also important to achieve successful results in endoscopic sinus surgery. If good quality wound healing cannot be achieved in the surgical field,synechiae and anatomic defects can occur that may require revision surgeries.

Mesenchymal stem cells play an active role in the treatment of many diseases. it primarily exerts therapeutic effects through paracrine. In this study, the effect of mesenchymal stem cell-derived multipotent factors on mucosal repair after nasal surgery was evaluated.

Inclusion Criteria:

1. 18 to 60 years old;
2. The clinical diagnosis is nasal trauma, nasal septum deviation, sinusitis, and nasal polyps requiring endoscopic surgery;
3. The patient's physical and mental state is stable, and he can return to the hospital regularly for follow-up examinations and cooperate to complete the experiment;

Exclusion Criteria:

1. Younger than 18 or older than 60;
2. Clinical diagnosis of nasal malignancies, or uncontrolled severe infectious diseases;
3. Past medical history of mental illness, malignant tumor, nose surgery;
4. People with serious underlying diseases (hypertension, diabetes, rheumatism, asthma) require long-term medication;
5. Long-term smoking, more than 5 cigarettes per day;
6. Work or daily life environment is exposed to large amounts of dust and chemical raw materials;

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