Physiological anemia is mainly caused by the increase of body fluids of pregnant women during pregnancy and the decrease of hemoglobin after dilution, while pathological anemia is mainly due to the fact that the demand for iron, folic acid and vitamin B12 is much higher than usual, so pregnant women are very likely to suffer from iron deficiency anemia and megaloblastic anemia during pregnancy, and if the treatment is not standardized, the hemoglobin may not be restored to normal level. If the treatment is not standardized, the hemoglobin may not return to normal level. I. Physiological anemia: In early pregnancy, pregnant women have a large pregnancy reaction, poor appetite and severe nausea and vomiting, and their intake of iron, vitamins and folic acid is significantly reduced. About 90g/L has been unable to make up, you can regulate through diet, increase the intake of iron in the diet, such as animal liver, lean meat, etc., you can also choose ferrous sulfate tablets, etc. for treatment. Second, pathological anemia: 1, iron deficiency anemia: when the body’s demand for iron and supply imbalance, resulting in the depletion of the body’s stored iron, followed by a lack of iron in the red blood cells, eventually causing iron deficiency anemia, there will be anemia during pregnancy about 90g / L has been unable to make up the situation. Patients with iron deficiency anemia may have obvious small cell hypochromic anemia as indicated by routine blood tests, and the ferritin in the four items of anemia is obviously reduced, and patients may have obvious anemia symptoms such as dizziness and weakness, and may also have characteristic tissue iron deficiency manifestations, such as poor mental health and spoon fingers, etc. Iron supplements can be given for treatment, such as oral ferrous succinate folic acid tablets, intravenous iron sucrose injection and iron dextrose injection, etc.; 2. megaloblastic Megaloblastic anemia: megaloblastic anemia is caused by the lack of folic acid and vitamin B12, which will lead to anemia of about 90g/L during pregnancy that cannot be replenished, with routine blood suggesting macrocytic anemia, and anemia four can be found with reduced folic acid and vitamin B12. and eat more vegetables and fruits. When anemia occurs during pregnancy, it is necessary to go to the hematology department of the hospital to improve the blood routine, anemia four tests, etc., and give treatment as soon as possible. The diet needs to eat more iron-rich foods, such as lean meat, animal offal, milk, eggs, cereals, vegetables, etc.