The feeling of a hole in the nasal septum after septum correction surgery is mostly considered to be caused by perforation of the nasal septum during the surgery. In the nasal septum correction surgery, the deviated bone should be removed according to the specific situation, in this process, if the mucous membrane on both sides of the same part is damaged accidentally, so that it forms a pair of perforation, and the hole is not filled with bone in a timely manner, so the patient will feel that there is a hole in the nasal septum after nasal septum correction surgery. Patients often have dry nasal cavity, nose bleeding, headache and nasal pus crust formation, etc. If the perforation is small and located in the anterior part of the nasal septum, there may be a whistling sound when breathing. Treatment can be done by septal mucosal flap repair, turbinate mucosal flap repair or extra-nasal tissue free grafting. The septum should be corrected carefully to avoid perforation of the nasal septum and to avoid the symptoms mentioned above. Once the symptoms appear, it is recommended to consult the hospital as soon as possible and have the symptoms treated by a professional doctor.