一位老人,身体素来健康,行走自如,也无特殊不适。在一次健康检查时,医生发现他的舌下小血管有变化,告诉他近期有发生心绞痛的可能。老人不以为然,家属也认为从未听到过有此种诊断方法,未按医生的 An old man, the body has always been healthy, walking freely, there is no special discomfort. At a medical examination, the doctor found that there was a change in his sublingual blood vessels, telling him that he had the possibility of having angina in the near future. The elderly disagree, the family also considered that such a diagnosis has never been heard, not according to the doctor’s