Because nasal septum deviation is a kind of cartilage or bone deviation, it is impossible for drugs to change the shape of bones. Only surgery can achieve good results in the treatment of nasal septum deviation. However, Zhimei experts remind patients and friends that improper nasal septum surgery will leave sequelae, so we should be careful when choosing nasal septum deviation surgery. 1, persistent nasal congestion, because the nasal septum protrudes into one nasal cavity, which leads to the blockage of one nasal cavity and causes long-term persistent nasal congestion. 3, increased secretions, deviated nasal septum, stimulating glands, increased nasal secretions, if secondary infection stimulates nasal mucosa, excessive secretion, mostly mucinous or mucopurulent secretions, if accompanied by sinus infection, it is purulent. 4. Reflex headache, which is also the protrusion of nasal septum, collides with soft tissues such as turbinate, leading to reflex headache, which only occurs on one side suddenly. For example, if the nasal septum deviates to the left, then the headache occurs on the left side, which is a persistent headache and gets worse when catching a cold. 5, loss of sense of smell, long-term, severe nasal septum deviation will lead to loss of sense of smell. Choose nasal septum deviation correction under nasal endoscope to eliminate the concern of postoperative sequelae and understand plastic surgery. The nasal septum deviation correction under nasal endoscope was used to treat nasal septum deviation, and the effect was remarkable. Endoscopic correction of nasal septum deviation is a new technique developed gradually in China in recent years to treat nasal septum deviation. Compared with traditional nasal septum correction, this technique has the advantages of less trauma, less pain during and after operation, good effect and less recurrence. With the popularization of minimally invasive technology of nasal endoscope and the in-depth study of the influence of nasal septum deviation on sinus drainage, the correction of nasal septum deviation under nasal endoscope has a tendency to replace traditional surgery.