Anemia does not mean that the amount of blood decreases or that it becomes thinner, but that the blood contains fewer red blood cells, or that the red blood cells contain less hemoglobin and hemoglobin. Hemoglobin, however, plays a considerable role in the body as it is responsible for transporting oxygen in the body, recycling waste carbon dioxide and causing it to be expelled from the lungs. If hemoglobin is insufficient to transport oxygen, the body becomes hypoxic, which can cause a variety of adverse conditions in the body. Some people confuse anemia with low blood pressure, but in fact they are different conditions. Types of anemia Some people think that anemia is caused by insufficient iron in the body, but there are other types of anemia. In order to diagnose exactly which kind of anemia you have, you must first distinguish the type of anemia. 1.Iron deficiency anemia Among all types of anemia, iron deficiency anemia is the most common. Women will go through these processes such as menstruation, childbirth and breastfeeding as they grow gradually, and these processes tend to cause iron deficiency. Postmenopausal women may suffer from chronic bleeding due to stomach ulcers or hemorrhoids, or malignant tumors, which may be the cause of anemia. 2. Pernicious anemia Anemia caused by deficiency of the hematopoietic factor vitamin B12 or folic acid. The main symptoms are paralysis of hands and feet, red tongue, nerve atrophy, and possibly slight jaundice symptoms. 3. Hemolytic anemia In general, red blood cells live for about 120 days, after which they are transported to the spleen for decomposition. If, for some reason, the red blood cells become weak, and the bone marrow cannot produce red blood cells in time to replenish them, anemia may result. This hemolytic anemia may also be accompanied by jaundice. 4. aplastic anemia If the bone marrow, which produces red blood cells, is damaged, or if hematopoietic cells, the predecessor of red blood cells, are formed (a stage in the process of red blood cell formation in the human body, found in the bone marrow. Both of these conditions can cause anemia. This is accompanied by a sharp decrease in the number of white blood cells and platelets. 5. Secondary anemia Anemia caused by rheumatism, parasites, or problems with the heart, liver, or kidneys is called secondary anemia. It also includes anemia that occurs during pregnancy. Symptoms of anemia With anemia, there is a lack of oxygen in the body due to a lack of hemoglobin. If the body is in a state of oxygen deficiency, then various adverse conditions will occur. 1, easily fatigued Insufficient oxygen in the body will easily make people pant and feel fatigued and tired after a little exercise; in addition, it will put a great burden on the heart, which may cause palpitations; more seriously, it will cause chest pain and difficulty in breathing. 2, can not get up in the morning Insufficient oxygen in the body will also affect the brain. Obviously sleep until dawn and still feel heavy-headed, and sometimes feel dizzy. 3, the face does not look good Insufficient hemoglobin containing red pigment will cause the color of the blood to become lighter. The color of the face, eyelids, lips and nails will turn white because of poor blood circulation due to insufficient oxygen. 4. Abnormal nails If the anemia is very serious, the nails will become thin and easy to break, or even appear back nail condition. At this point, self-treatment is not able to restore the nails to normal condition, you should follow the doctor’s instructions for treatment. 5, loss of appetite Insufficient oxygen in the body can also cause gastrointestinal problems. The most common is a loss of appetite, nausea, constipation, diarrhea and other conditions. 6. Difficulty in swallowing If you have anemia, it may also cause problems in swallowing. Taking oral iron supplements can treat this symptom.