The sequelae of nasal cyst surgery are relatively few and basically none, but they also depend on the location of the cyst and other circumstances, as follows: 1. Patients with pterygoid sinus cyst, there are vision changes before surgery, such as vision loss, blurred vision, and after a certain degree, the nerves change and some cannot be recovered. After removing the cyst compression factor, their vision stays at the original degree; 2, septal sinus cyst, cyst near the skull base, also encountered in the clinic, skull base bone destruction, directly with the dura mater adhesion together, and even some will cause cerebrospinal fluid leakage. If the patient is judged to have cerebrospinal fluid leakage before surgery to do repair work, basically no sequelae.