有的人发现面部或其他部位的皮肤发黄,就认为贫血了。还有的人,发现自己血压偏低,就认为是贫血造成的。还有的人,单从字面上理解,以为贫血就是血的容量减少。这些认识都是片面的甚至是错误的。所谓贫血,是指一定容积血液里的血红蛋白含量与红细胞的数目低于正常。而按患者体重所应有的血液容量来看,贫血病人一点也不比正常人的少, Some people find the face or other parts of the skin yellow, they think anemia. Still others, find themselves low blood pressure, it is caused by anemia. Still others, literally understand that anemia is the reduction of blood capacity. These understandings are all-sided and even wrong. The so-called anemia, refers to a certain volume of blood hemoglobin content and the number of red blood cells below normal. According to the patient’s body weight should have the blood capacity point of view, anemia patients no less than normal,