There are many sequelae of septal deviation correction surgery, mainly including external nasal deformation and collapse of the nose, hematoma, infection, septal perforation, and in serious cases, it may also lead to intracranial complications and cause cerebrospinal fluid leakage. However, this kind of surgery is very mature now, and the chance of causing the above-mentioned conditions is relatively low, and you need to choose the local regular public hospital ENT department for the surgery. Deviated nasal septum is generally related to genetic development and may lead to nasal congestion and poor ventilation, recurrent nasal bleeding, sneezing and runny nose. Once diagnosed, surgery is the only treatment. Surgery requires about one week of hospitalization, and the nasal cavity needs to be filled with gauze strips after surgery, and try not to touch the nose after surgery.