Nasal septum curvature surgery tears after surgery, the nasolacrimal duct is connected to the nasal cavity, the septum curvature surgery may be performed at the same time as the inferior turbinate external displacement plasty, postoperative edema of the nasal mucosa, nasal filling caused by the nasal drainage is not smooth and other reasons, resulting in post-surgical symptoms of tears. 1. External inferior turbinate transfer plasty: there is a possibility of postoperative edema in the anterior dome of the inferior nasal tract, which compresses the lower nasal opening of the tear duct, causing poor tear drainage in the nasolacrimal duct causing postoperative tearing. 2. Postoperative nasal mucosal edema: after the surgery for deviated nasal septum, there is a possibility of nasal mucosal edema, which may lead to blockage of the nasolacrimal duct, and also lead to postoperative tearing after the surgery for deviated nasal septum. 3. Nasal tamponade: Nasal tamponade may be needed after the surgery, which may cause the backflow of tears and nasal fluid, and may also lead to tearing after deviated septum surgery. There may be other reasons for tearing after deviated septum surgery. It is recommended to actively reflect the symptoms to the medical staff so that the causes can be clarified and standardized as soon as possible.