It is caused by dry rupture of nasal mucosa and may be accompanied by nasal bleeding. Intranasal pain is also one of the symptoms of nasal cancer. The symptoms of nasal malignant tumor manifest as progressive aggravation, mostly asymptomatic in early stage, and may have nasal congestion and bloody mucus in late stage. Facial numbness and swelling, eye displacement, loose teeth, vision loss, difficulty in opening mouth or other neurological symptoms. Doctors may find destruction of sinus bone after performing CT and x-ray examinations, and pathological examinations can confirm the diagnosis. In sinusitis, nasal congestion, runny nose, headache and sinus pressure are present. Patients with acute sinusitis may have fever and general malaise. Examination with rhinoscopy or nasal endoscopy reveals congestion and swelling of the nasal mucosa, purulent discharge from the middle nasal passage or olfactory fissure, and pressure pain in each corresponding sinus area. In the past, the entire maxilla on the affected side was removed surgically, and sometimes the eyeball was also removed. However, recently, the maxilla can be preserved as much as possible by using a combination of radiotherapy, chemotherapy, and tumor reduction surgery. The treatment method varies more or less depending on each hospital. In general, radiotherapy and chemotherapy are used in combination 4-5 times a week. During this period, once the necrotic tissue in the maxillary sinus is identified, it can be removed by suction. If the tumor is completely gone, no treatment can be necessary. If there is a little residual tumor, partial excision can be done. However, if the tumor can be clearly seen with the naked eye or CT, it is necessary to perform an extended reconstructive surgery. The reconstructive approach varies depending on the extent of the surgery. If the eye is also removed, it is not enough to cover the defective area, and reconstructive surgery such as bone grafting or prosthetic eye is necessary. In addition, when the tumor progresses to the base of the skull, not only the old method of surgery from outside the skull is available, but recently, with the assistance of brain surgery and plastic surgery, a piece of resection from inside the skull can be performed.