The precautions after nasal polyp surgery include body position, prevention of infection and bleeding, as well as adjustment of life and diet, regular review and so on. 1. Body position: It is recommended that patients adopt semi-lateral lying position for a short period of time after nasal polyp surgery, which is conducive to the timely discharge of nasal secretions, can reduce nasal congestion, and alleviate the symptoms of nasal congestion; 2. Prevention of bleeding and infection: nasal polyp surgery should be carried out on time according to the doctor’s instructions for nasal irrigation, and pay attention to nasal hygiene. This helps to prevent postoperative wound adhesion and infection, and also effectively reduces the chance of postoperative bleeding. If necessary, you need to routinely use penicillin and other antibiotics to prevent or treat infection; 3. Life and diet: after nasal polyp surgery, patients are advised to avoid smoking and alcohol, pay attention to regular work and rest, stay away from polluted environments, and exercise properly. Avoid eating spicy, greasy and other stimulating food, and eat some high-calorie, high-protein and vitamin-rich food. 4. Review: Nasal polyps have a certain chance of recurrence, patients need to follow the doctor’s instructions on time for review, and timely removal of postoperative hyperplasia of the vesicles and residual lesions. After surgery, patients should follow the doctor’s instructions to standardize the use of medication and treatment.