Obesity may be anemic, but anemia is not particularly related to fatness.
Anemia is the lack of sufficient amount of red blood cells in the periphery of the human body, and when there are insufficient red blood cells, the tissues and organs will not be able to supply sufficient oxygen, which induces a series of symptoms, such as weakness, fatigue, dizziness and so on.
There are many causes of anemia, such as insufficient or reduced red blood cell production, excessive destruction of red blood cells, blood loss, etc. Also, dietary imbalance, various chronic diseases, biological factors, etc., can also induce anemia. It can be seen in iron deficiency anemia, megaloblastic anemia, aplastic anemia, systemic lupus erythematosus, acute leukemia and so on.
However, there is no clinical evidence of a relationship between anemia and body mass, so both fat and thin people may be anemic. If anemia is diagnosed, active treatment is recommended. Doctors need to clarify the type and severity of anemia before choosing the appropriate treatment.