Anemia patients with fatigue, poor appetite should pay attention to rest, more intake of food rich in micronutrients, and treatment for the cause of anemia, such as iron deficiency anemia attention to iron supplements, megaloblastic anemia need to supplement folic acid and vitamin B₁₂. 1. Anemia patients should rest more and not do heavy physical work. If the iron deficiency anemia is caused by malnutrition, it should follow the doctor’s instructions to supplement ferrous sulfate, ferrous fumarate, etc., and eat more food rich in iron and vitamin C, such as lean meat, liver, animal blood, jujubes, apples and so on. 2. Treatment of etiology is more important. If it is megaloblastic anemia, folic acid and vitamin B₁₂ should be supplemented. If the anemia is caused by leukemia, chemotherapy with drugs such as cytarabine should be given, and these symptoms will be relieved only if the cause of the anemia is corrected. Red blood cells and hemoglobin can carry and transport oxygen to various organs in the body. The decrease in the number of red blood cells and hemoglobin content after anemia will lead to a lack of oxygen in tissues and organs, resulting in symptoms such as weakness, lack of concentration, dizziness, poor appetite, etc. This is caused by the anemia itself, so if you want to alleviate the symptoms, then you need to treat the anemia. If anemia is diagnosed, the cause of the anemia must be clarified, and treatment for the cause should be directed by a doctor.