Symptoms of head and neck tumors include: 1) nasopharyngeal and paranasal sinus tumors: patients will experience nasal congestion, runny nose, tinnitus, deafness and hearing loss, etc. Upward growth of tumors will lead to vision loss and downward growth of tumors will lead to toothache; 2) oral tumors: patients will experience tongue pain, bleeding and swallowing pain; 3) throat tumors: patients may experience difficulty in swallowing and breathing; 4) lymph node metastasis in the neck and other parts of the head and neck tumors; 5) brain metastases: patients will experience hemiplegia and encephalopathy; 6) some patients will experience lung metastasis, liver metastasis and bone metastasis.