Recently, several patients with advanced nasal and sinus tumors have been admitted one after another, and I feel very sorry for them because it can be said that the causes of such results are caused by the patients’ own lack of basic knowledge of the disease, resulting in delayed diagnosis and treatment. Perhaps these could have been avoided if the patients had some basic knowledge. In order to reduce this situation in the future, we would like to summarize a few points for reference. Firstly, like all malignant tumors, the possibility of nasal sinus malignancy increases with age. Therefore, for people over 40 years old, they should be alert to the possibility of malignant tumors, and if nasal symptoms such as nasal blood in the nose and persistent nasal congestion occur, they should seek medical consultation promptly to rule out nasal sinus tumors. Secondly, malignant tumor of nasal cavity and sinus, due to its characteristic of tumor proliferation and destruction, can destroy the surrounding structure causing the change of normal appearance. Therefore, if there are some symptoms that did not occur before for no reason, such as recent nasal congestion, newly appeared nasal discharge with blood, recent toothache or headache, you should be alert and seek timely medical consultation to exclude nasal sinus tumor. Of course, tumors can also occur in young people and even children, therefore, any symptom persisting for 3 months or more should be promptly seen by a doctor to avoid delaying the diagnosis and treatment. Finally, the symptoms of nasal cavity sinus malignant tumor are not specific in early stage, but all symptoms have some significance, so if the following symptoms persist for 3 months, all of them should be paid attention to avoid delaying the disease and missing the best time for treatment. 1.Nasal congestion: The nose is a respiratory and ventilating organ, early nasal tumor occupies the airway, early nasal respiratory discomfort occurs, with the growth of tumor, nasal ventilation discomfort gradually aggravates. 2.Bloody nasal discharge: If a patient over 40 years old has frequent small amount of bleeding in one side of the nose or blood in the nose or blood-purulent nasal discharge, especially with a certain odor, early medical treatment is needed, which is also an early symptom of sinus cancer. 3.Facial numbness: pain, looseness and loss of upper teeth. For cancer occurring in maxillary sinus, the patient may have facial numbness or ankylosis, unexplained upper tooth pain, or loss in early stage. 4. Diplopia: It is also known as seeing objects with double shadows, which is also a result of sinus cancer invading the eye muscles. It affects the rotation of the eye and causes double shadows of objects.