Pre-operative precautions: 1. Patients without bleeding disorders and active or progressive diseases of the heart, lungs, liver and kidneys and other important organs, such as those suffering from hypertension, diabetes or infectious diseases, need to have surgery after their conditions are under control. 2.Patients who have been taking steroid hormones and aspirin for a long time should preferably stop using them one week before surgery, please consult the relevant doctor. 3.Surgery is not recommended for those who have the following nasal conditions: the presence of infected foci such as boils and folliculitis on the skin of the nose, acute sinusitis, allergic rhinitis attack period, history of acute nasal trauma within 3 months, etc. 4.Please avoid menstruation for female patients; suspend surgery during the pre-pregnancy period (3 months) and late pregnancy period (3 months). 5.Since the slight local swelling may last for several weeks after surgery, the shape of the nose is slightly less natural at this time, so please consider avoiding important social occasions during this period when arranging the surgery. 6.Because of the complicated procedure and post-operative recovery of the crooked nose correction, sometimes it is difficult to control accurately, except for a certain degree of asymmetry on both sides or local unevenness in the end, which needs to be repaired after six months. Surgical methods: 1, acute traumatic crooked nose: within 2 weeks of the bony crooked nose, can be closed method, the fracture displaced bone piece of manual reset. 2.Congenital/old cartilaginous crooked nose: open approach, loosen all the cartilage, septum and bony structures causing the crookedness, adjust to the median position and fix appropriately 3.Congenital/old bony crooked nose: add nasal bone osteotomy to reset. Anesthesia: local anesthesia: local injection of anesthetic at the surgical site, no additional charge; intravenous general anesthesia assist: long operation time, many sites, or poor pain tolerance, intravenous administration of drugs, no tracheal intubation, additional charge (depending on the length of surgery 1500-3000 yuan). Pre-operative preparation: 1, routine examination: (can be done on the day of surgery, local anesthesia without fasting, intravenous general anesthesia fasting laboratory tests; foreign patients to save time can also be completed in advance in the local tertiary hospital, valid for 3 months) local anesthesia surgery: routine blood, urinary routine, coagulation four, cosmetic immune four (hepatitis B, C, syphilis, AIDS); intravenous general anesthesia surgery: the above six items, liver and kidney function, fasting blood sugar, electrocardiogram. 2, those who choose local anesthesia normal diet, those who choose intravenous general anesthesia auxiliary 6 hours of preoperative fasting, 4 hours of abstinence from water. 3. Pay attention to the cleanliness of the operation area before surgery, cut short nasal hair and beard, and do not wear makeup. Post-operative precautions: 1. Local 4℃ ice pack around the nose (ice bag, refrigerated bag of milk, etc.) for 2 hours, head high and semi-recumbent position, no hot packs for 3 days after surgery. 2.The gauze stuffed in the nostril can be removed the next day after surgery; if there is a drainage tube, external fixation device or sutures are removed after 7 days. 3.If a nasal drainage tube is placed, it may be necessary to change the syringe periodically to maintain negative pressure depending on the amount of drainage in the syringe. 4.Avoid water on the wound, avoid forceful nose blowing and rubbing on the nose, and avoid bending and lowering the head. 5.Do not drink hot drinks on the day after surgery, and avoid smoking, alcohol, fish and shrimp, spicy and stimulating food for one week. 6.Take oral antibiotics for 3 days to prevent infection, and take painkillers if necessary (such as painkillers, tramadol, etc.). 7.The stitches of the nasal columella incision should be removed 7 days after surgery (or as prescribed by the doctor), and the absorbable thread in the nostril can be removed or not. 8.After surgery, edema, bruising, bruising, small amount of blood, nasal congestion, temporary asymmetry of nostrils, pain in the bone extraction area, etc. are normal phenomena, and most of them will gradually subside after 1-2 weeks. If you find that the swelling and bruising or pain increase or continue to affect ventilation, please contact the doctor immediately. 9.Avoid wearing frame glasses for 3 months, no rubbing and external impact on the nose. 10.Please contact the doctor for follow-up after six months.