The treatment of iron deficiency anemia mainly includes two aspects. One is the treatment targeted at correcting anemia caused by iron deficiency, and the other is identifying the cause of iron deficiency in the body and correcting it. Iron deficiency anemia is caused by chronic blood loss and a relative deficiency in iron intake due to increased iron demand in the body, which leads to reduced red blood cell production. The main treatment is to supplement with iron-rich medications, and one can also consume more lean meat, pork liver, duck blood, spinach, black fungus, and other foods rich in iron. For patients with iron deficiency anemia, it is crucial to identify the cause of the iron deficiency and provide targeted treatment to fundamentally resolve the issue of iron deficiency anemia.