What s going on with low hemoglobin and what s going on with low hemoglobin?

There are several conditions for low hemoglobin:

1. Physiological reduction: 3-month-old infants to children before the age of 15 years old, mainly due to rapid growth and development, the relative deficiency of hematopoietic system hematopoiesis, generally 10%-20% lower than that of normal people. Blood is diluted in the second and third trimesters due to increased blood volume in pregnancy, and in older people due to a gradual decrease in bone marrow hematopoiesis, red blood cells and hemoglobin levels can decrease.

2. Pathological reduction: bone marrow hematopoietic failure, such as anemia associated with aplastic anemia and myelofibrosis.

Anemia due to deficiency or impaired utilization of hematopoietic substances, such as iron deficiency anemia, megaloblastic anemia due to folate and vitamin B12 deficiency.

Anemia caused by excessive destruction of red blood cells due to hereditary defects in red blood cell membranes and enzymes or foreign factors, such as hereditary spherocytosis, marine anemia, paroxysmal nocturnal hemoglobinuria, abnormal hemoglobinopathies, immune hemolytic anemia, major surgery of cardiopulmonary bypass or some biological and chemical factors, and anemia caused by some acute or chronic blood loss.

Male or female? Anemia doesn't count. If it's a man, it's just a little bit lower. If it's a woman, that's normal.

"Mean corpuscular hemoglobin concentration" corresponds to indicators such as "hemoglobin content". If your "red blood cell count" is low and your "red blood cell count" is not low, then the average hemoglobin concentration per red blood cell will of course be a little lower.

If there is anemia, then this indicator, combined with several other indicators, can determine the type of anemia.

Low hemoglobin, which is commonly known as anemia, has many causes, which can have the following aspects, one is malnutritional, for example, insufficient iron intake or absorption, insufficient absorption of vitamin B6 or folic acid, etc. The second may be caused by chronic blood loss, such as bleeding from the digestive tract. The third is hemolytic anemia, some diseases or some enzyme deficiencies will cause hemolytic anemia, and the fourth is anemia caused by some blood system or other diseases.

Children from 13 months old to before 15 years old have lower hemoglobin levels than ordinary people because of their rapid growth and development, which leads to a relative shortage of hematopoietic raw materials. In addition, during pregnancy, the increase in blood volume in pregnant women leads to hemodilution; In the elderly, the amount of red blood cells and hemoglobin can be reduced due to factors such as the gradual decrease in the hematopoietic function of the bone marrow.

2. Aplastic anemia, myelofibrosis and other factors caused by bone marrow hematopoietic failure and decreased red blood cell production and low hemoglobin.

3. Malnutrition, many nutrient deficiencies will directly affect the amount of hemoglobin, resulting in a lack of hematopoietic substances and a decrease in the production of red and fine starvation relatives, such as iron deficiency anemia, sideroblastic anemia, megaloblastic anemia caused by folic acid and vitamin B12 deficiency.

4. Excessive bleeding is also a common cause of low hemoglobin smile, such as blood hemorrhoids, heavy bleeding during childbirth, dysfunctional uterine bleeding, menorrhagia, peptic ulcer, hookworm and other chronic blood loss caused by anemia.