Nasopharyngeal carcinoma is a malignant tumor of the nasopharynx, primarily found in regions populated by Mongoloid races, and is particularly common in coastal areas or in Guangdong and Guangxi regions. Nasopharyngeal carcinoma has a genetic component, meaning if you have a family history of this cancer, your chances and your descendants' chances of developing nasopharyngeal carcinoma are higher compared to those without such a family history. However, having a family history does not guarantee the development of nasopharyngeal carcinoma, nor does the absence of a family history ensure one will not get it. Under such circumstances, patients with a family history should regularly check their nasopharynx and consider whether there are traces of blood in the first sputum they cough up in the morning, which might indicate a malignancy in the nasopharynx. In such cases, performing a nasopharyngoscopy can generally clarify the presence or absence of a tumor.