How to judge that it is anemia can be judged from the general performance, laboratory examination, bone marrow examination and so on. 1. General performance: people with anemia often have pale face, pale lips and conjunctiva. When exertion or exercise, it is easy to have obvious symptoms such as chest tightness, panic and shortness of breath. In severe cases, there can also be poor appetite, indigestion, bloating, tongue inflammation, dizziness, insomnia and other symptoms. 2. Laboratory tests: such as routine blood tests, there is usually a significant decrease in hemoglobin and a decrease in red blood cell count, which can lead to a diagnosis. 3. Bone marrow examination: Bone marrow aspiration and biopsy can be used to help determine the cause and mechanism of anemia. When anemia is suspected, it is recommended to consult a doctor in time to clarify the degree and cause of anemia and receive appropriate treatment.