Nasopharyngeal cancer, located behind the nasal cavity and above the oropharynx, is generally difficult to diagnose early due to its concealed location. However, there are early signs, such as nasopharyngeal bloodstained mucus experienced during sniffing, which should raise suspicions of nasopharyngeal cancer. Additionally, early-stage nasopharyngeal cancer may present with unilateral nasal obstruction, which gradually progresses to more severe blockage. Another indication is the presence of a neck lump or enlarged lymph nodes, which also suggests the possibility of nasopharyngeal cancer. Other nonspecific reactions, such as dermatitis, dermatomyositis, or a general skin rash, should also be considered potential indicators of nasopharyngeal cancer. These signs require attention.