1, absorption disorders

Mostly seen in the stomach after several years of total or subtotal resection, stored iron has been used up, food directly into the jejunum and stomach acid is too low can affect the absorption of iron. In addition, chronic diarrhea or small bowel disease can cause iron malabsorption, but also with a large number of intestinal epithelial cells shedding and loss of iron.

2, chronic blood loss

If you suffer from chronic hemorrhagic disease, such as gastrointestinal bleeding, women's menstrual bleeding, hemoptysis, hematuria, nosebleeds and so on, this is all will cause iron deficiency anemia. And chronic renal insufficiency can also lead to iron deficiency anemia.

Specifically, chronic gastrointestinal bleeding is often a common cause of chronic iron deficiency anemia in men, even if the fecal occult blood is negative, chronic gastrointestinal bleeding can not be completely ruled out, suggesting that attention should be paid to the exception of gastrointestinal tumors.

3, nutritional factors

Due to insufficient dietary iron supply or dietary structure is unreasonable. Most people in our country mainly eat cereals and vegetables, less meat, and the dietary iron supply is mainly non-heme iron, containing a large number of substances that inhibit the absorption of non-heme iron, and our people's food supply of iron is not a lot of iron, and even more than the standard iron supply of more than one times, but the iron provided may not always be absorbed.

When the physiological iron needs increase, such as infants and young children, adolescents, women in their reproductive years, it is difficult to obtain the required iron from food alone, and thus iron deficiency anemia occurs.

Prevention of iron deficiency anemia can usually eat:

1?usually pay attention to reasonable diet, eat more iron-rich foods such as animal liver, animal blood,

2?eat acerola cherry rich in vitamin C: food iron in the presence of ionic forms including Fe2+ and Fe3+2 kinds, the human body can absorb only Fe2+. Vitamin C has a strong reductive, can be food in the Fe3 + reduced to Fe2 +, to promote the absorption of food iron in the intestinal tract, is conducive to the prevention and treatment of iron deficiency anemia.