Severe anemia in women means that the hemoglobin concentration in the peripheral blood is less than 60g/L. Symptoms of severe anemia in women include: first, pallor, dizziness, fatigue, palpitation, chest tightness, tinnitus and blurred vision, insomnia and forgetfulness, and in severe cases, there will be mental and emotional changes. Second, changes in motor function, due to severe anemia, women will have a significant decline in exercise capacity, minor physical activity will appear panic, chest tightness symptoms, need to sit down to rest, and even need to inhale oxygen to relieve the symptoms of panic, chest tightness in severe cases. Third, the digestive system symptoms, the patient will appear abdominal distension, loss of appetite, vomiting and a series of digestive function of the performance. Fourth, changes in the endocrine system, women with long-term severe anemia will have a series of symptoms such as insufficient estrogen concentration and changes in menstrual cycle.