Usually, the early symptoms of maxillary sinus cancer are not obvious, and as the disease progresses, symptoms such as facial bulging and pain will appear. Maxillary sinus cancer belongs to malignant tumor, the cause of which is still unclear and may be related to heredity, exposure to carcinogenic substances and other factors. Since the tumor grows in the sinus in the early stage, there is no clinical symptom or the symptom is not obvious, and it is easy to be misdiagnosed or underdiagnosed. Until the patient has discomfort symptoms, the tumor often destroys the sinus wall and involves the surrounding tissues, and the disease has already developed to the middle and late stages. For patients with middle or late stage maxillary sinus cancer, common symptoms include facial bulging, pain sensation, alveolar deformation, restricted mouth opening, soft palate collapsing and so on. Meanwhile, some other patients will suffer from headache, ear pain, hoarseness, dyspnea, emaciation, anemia and so on, which seriously affect the quality of life and health. It is suggested that after diagnosis of maxillary sinus cancer, patients should adjust their mindset and cooperate with doctors for treatment in order to control the progress of the disease and improve the quality of life. In order to control the progression of the disease and improve the quality of life, people with maxillary sinus cancer can follow the doctor’s instruction to rinse the nasal cavity with saline, actively quit smoking, and stay away from second-hand smoke and polluted environment.