Nasopharyngeal cancer is a malignant tumor that occurs in the parietal and lateral walls of the nasopharynx, and its incidence rate is among the top malignant tumors in otolaryngology. Due to the hidden location of nasopharynx, it is difficult to be detected in the early stage. It is believed that nasopharyngeal cancer has a strong genetic relationship and is a genetic disease with multiple genes. The more certain causes are considered to be related to EBV infection, chemical carcinogenic factors or environmental factors and genetic factors. The anatomical location of nasopharynx is hidden and the early symptoms are not typical, so if patients and doctors do not pay attention to it, it is easy to misdiagnose and miss the diagnosis. Common early symptoms of nasopharyngeal cancer include blood in aspirated nasal discharge when waking up in the morning and occasionally blood in nasal blowing; painless, progressive enlargement of unilateral neck lumps, hardness to touch, poor activity and uneven surface lumps; as well as stuffy feeling in the ears and tinnitus, which are diagnosed as secretory otitis media. There are also symptoms in the form of unexplained unilateral headache, or oblique double vision of the eyes. If middle-aged or above (nowadays, it is not uncommon for patients with nasopharyngeal cancer to develop in their twenties or thirties), they need routine nasopharyngeal examination to avoid misdiagnosis of nasopharyngeal cancer if they have symptoms such as aspiration of a small amount of snot and blood in the morning, stuffy ear, painless lump in the neck, and migraine.