Anemia due to too little iron

Anemia due to too little iron is common and can make you feel tired and powerless. The most common cause of anemia is that you have lost blood. For example, it can be during menstruation or if you have a stomach or intestinal disease that causes bleeding. It may also be because you cannot absorb iron from the food.

Polycythemia – too many red blood cells in the blood

Polycythemia means that you have too many red blood cells in your blood. It makes the blood flow thick. Polycythemia can be a disease but it can also be a consequence of other diseases. The treatment you receive depends on what form of polycythemia you have.