Nasopharyngeal cancer is actually one of the tumors with very good treatment outcomes, especially in early stage patients. Early screening and early diagnosis is the key to improving the survival rate and quality of life of nasopharyngeal cancer patients. Nasopharyngeal cancer is commonly found in 7 major danger signs. If the following symptoms persist for more than 2 weeks, be sure to check them out as early as possible. With these 7 signals, rush to the hospital! Headache Nasopharyngeal lesion infringing on bone, nerves and blood vessels at the base of the skull will cause persistent unilateral headache, in which frontal, temporal, parietal and occipital areas are more frequent. If the disease develops to the advanced stage, persistent headache is easily mistaken for neuralgia. Tinnitus, stuffy ears, hearing loss The lesion often occurs in the pharyngeal fossa or the posterior wall of the roof of the nasopharynx, and the tumor compresses or infringes on the Eustachian tube, causing unilateral tinnitus, hearing loss or secretory otitis media. Nasal mucus with blood Most of the patients aspirate bloody nasal mucus from the nasal cavity backward and spit it out from the oropharynx, this kind of “aspirated mucus and blood” is easy to cause missed diagnosis and misdiagnosis. Nasal congestion Mechanical nasal congestion due to blockage of nasal cavity and posterior nostrils by the tumor, and the enlargement of the tumor in the late stage may lead to nasal congestion on both sides. Enlarged lymph nodes in the neck are mainly deep lymph nodes in the upper part of sternocleidomastoid muscle, which are solid and without pressure pain, and not easy to be pushed. With the development of the tumor, it can compress the glossopharyngeal nerve, vagus nerve, parasympathetic nerve and hypoglossal nerve, thus manifesting as inability to lift the soft palate, difficulty in swallowing, paralysis of the vocal cords, and atrophy of one side of the tongue and deviation to the affected side. Cranial nerve symptoms The tumor spreads intracranially through the rupture foramen, and facial numbness, diplopia, blurred vision, ptosis, and strabismus may occur. Metastatic lymph nodes in the deep neck may compress the nerves at the base of the skull, resulting in hypopharyngeal sensation and soft palate paralysis. Tumor distant metastasis Nasopharyngeal cancer metastasis can invade eye, brain, bone, lung, liver and other tissues, especially lung, liver and bone. If there are fixed and stubborn pain in certain bones of the body, frequent bloody sputum with chest pain, enlarged liver, severe vision loss, etc., all of them should be alerted to cancer metastasis. Nasopharyngeal cancer is related to four major factors 1. Heredity: Nasopharyngeal cancer tends to appear in batches in the same race and the same family, precisely because the development of nasopharyngeal cancer may be related to blood or heredity. 2. Lifestyle habits: prefer salted fish and salted meat. Nitrite can not only induce nasopharyngeal cancer, but also liver cancer, esophageal cancer and kidney cancer. 3.Infection: EBV. If there are more EB virus antibodies in the blood, there will be a higher risk of nasopharyngeal cancer. 4.Natural environment: high nickel and less selenium. For example, in Guangdong, the content of nickel in soil, water and rice is higher than other regions. Nickel content in the hair of nasopharyngeal cancer patients is also higher than that of healthy people. A high nickel diet may be a contributing factor to the development of nasopharyngeal cancer. How to improve the detection rate of early nasopharyngeal cancer? Regular checkups: High-risk groups such as those with family history should go to specialized hospitals for routine checkups once every half a year or once a year. 2. Receive signals from the body in time: if there is no obvious cause for blowing or inhaling snot with blood, it should be checked in time. 3.Often pay attention to the neck: making a habit of touching the neck and observing whether there is any abnormality in the lymph can also help early detection of nasopharyngeal cancer.