Hemoglobin is a transport protein within the red blood cells that carries oxygen to the tissues of the body, and is generally (120-160) g/L in normal men and (110-150) g/L in women.
A decrease in hemoglobin (Hb) that is below normal is called anemia, and a woman with hemoglobin ( A woman with a hemoglobin (Hb) of less than 100 g/L during pregnancy is determined to be anemic. Anemia can be seen in a variety of diseases:
1. Iron deficiency anemia due to insufficient hematopoietic material;
2. Bone marrow hematopoietic failure or aplastic anemia;
3. Acute blood loss, chronic blood loss resulting in massive loss of red blood cells, commonly due to severe trauma, excessive menstrual bleeding, anal fissure/hemorrhoid bleeding, etc.
4.
5. Invasion of bone marrow by malignant tumor cells, e.g. leukemia, metastasis of cancer cells, etc. The increase in hemoglobin (Hb) is usually seen as a symptom of true erythrocytosis; it is accompanied by vomiting or diarrhea in people with severe burns/dehydration, people with long-term smoking, people with chronic diseases, etc. The combination of red blood cell count and hemoglobin measurement can differentiate the degree of anemia, which is used to determine the index of anemia.