正常人的口中不会感到有异味的。如果自觉口中有苦、甜、淡、酸或口臭等异常感觉，甚至连旁人也能闻到这些异味时，就要意识到自己健康状况的变化。 　　一、口苦而干 一般是由于患了发热的疾病以后，寄生在口腔里的葡萄球菌和乳酸杆菌作怪所致，中医学也认为口苦属于热症。如 Normal people’s mouths will not smell. If you consciously have bitter mouth, sweet, light, sour or bad breath and other unusual feelings, and even others can smell these odors, we must realize that their health changes. First, bitter and dry Generally due to suffering from fever after the disease, parasites staphylococcus aureus and lactobacilli in the mouth due to misunderstanding, medicine also believes that mouth bitter belongs to the heat. Such as