Pregnant women’s blood replenishment includes medication and blood transfusion treatment. There are many causes of anemia, such as iron deficiency anemia, megaloblastic anemia, etc., which need to be targeted treatment. 1. Iron deficiency anemia: it is the most common cause of anemia, mainly because of insufficient iron intake, and thus insufficient hemoglobin synthesis, anemia. For mild anemia, ferrous succinate tablets can be taken orally with vitamin C, or iron sucrose injection can be applied intravenously; for severe anemia, blood transfusion can be performed to rapidly increase the content of red blood cells and improve the symptoms of hypoxia. 2. Megaloblastic anemia: mainly because of insufficient folic acid and vitamin B12 in the body, the DNA synthesis of red blood cells is impaired, thus anemia occurs, which can be diagnosed by checking the content of folic acid and vitamin B12 in the body, and timely supplementation of folic acid and vitamin B12 can be done. If anemia occurs, it is necessary to improve the blood routine, folic acid and vitamin B12 content and other tests, and follow the doctor’s instructions for treatment, but also need to pay attention to the diet, supplemental nutrition.