What causes anemia during pregnancy?

Dilution, iron def. As the baby grows and the uterus enlarges, more blood volume is needed. The number of red cells increases, but the plasma (liquid part of blood) increases even more, so the red cells get diluted. If there isn't enough iron in a woman's system to make the extra red cells, anemia will be more pronounced. If you are anemic to begin with before pregnancy, it will be worse while pregnant.
Water Retention. During pregnancy your body makes more red blood cells, but your it also normally holds onto more water. The increase in water is greater than the increase in red blood cells, and that causes a mild anemia in almost every pregnant woman. Your body uses iron to make red blood cells, and because the baby uses iron, your obstetrician may determine that you need extra iron in the form of a pill.

Related Questions

Can anemia during pregnancy harm the fetus? I’m four months pregnant and was just diagnosed with anemia. Could this be harming my unborn child? .

No. If it is mild degree of anemia, then taking oral iron pills can help correct it. If it is a very severe degree of anemia, it can sometimes affect the baby's growth, and if oral iron pills aren't enough to help correct the anemia, a referral to a hematologist can be made, and they can give IV iron treatments to help. Read more...
Possible, unlikely. Maternal anemia is grossly overdiagnosed during pregnancy in the U.S.; british studies have proven that the best maternal hemoglobin is 9-11 g/dl as a nadir around 28 weeks. If you are in that range you and the baby are just fine. I would get concerned if this gets below 8-9 g/dl and try oral iron supplementation. Consider electrophoresis if never done before to exclude hemoglobinopathies. Read more...

What causes anemia in the 2nd trimester of pregnancy?

Dilution. The increase in blood vessel fluid leads to a decreased concentration of blood cells. Also, iron deficiency is common and iron is the main component of hemoglobin, the oxygen-carrying component of the blood cells. Be certain to have your iron levels checked. Read more...
The most common. Would be a dilutional anemia related to the expanded plasma volume state. Read more...

Can you get anemia even if your parents were healthy during pregnancy?

Yes. You can get any sort of anemia regardless of your parents health during pregnancy. There are some anemias that are inherited from your parents, but again, your arents health during pregnancy would be irrelevant. Read more...

A case of immune hemolytic anemia - chances of becoming pregnant? Care during pregnancy

Should be able to. Having a hemolytic anemia should not affect the ability to get pregnant. However, your hematologist will need to monitor your blood closely. May need extra folic acid. Hope this helps. Read more...

Is it possible to develop anemia even if your parents were vaccinated of it during pregnancy?

Don't worry. Vaccinations are recommended for contagious diseases. Pregnancy requires review of your vaccination record and health. Anemia of pregnancy due to the high fluids present in your body may be mild and not a problem, but vitamin supplementation and medical care needed to monitor any anemia. Question your doctor about your parents health history, and its affects on your pregnancy. Read more...

Tubes tied, have high bp, & rh antibodies. I know havin antibodies can cause anemia but is it safe to have another baby if pregnancy is closely watche?

Multiple issues. If you could get pregnant, the issue of anemia in the fetus could be managed. If the father of the baby is Rh negative, there is no risk of anemia to begin with. Having your tubes tied would make a natural conception difficult, even with surgical reversal of the tube blockage. You may need assisted reproduction. Read more...