Bleeding in Early Pregnancy - Threatened Abortion

Bleeding in early pregnancy, usually before 20 weeks of the pregnancy,
is also called a "Threatened Abortion." Whenever there is some bleeding
early in pregnancy there is an increased risk of a miscarriage.

Whenever a pregnant woman experiences bleeding in pregnancy the first step is to make sure that the fetal heart beat is present, that the pregnancy is viable. In the presence of a viable pregnancy with a fetal heart beat seen the following are some reasons for a threatened abortion.

1. Subchorionic hematoma
2. Vanishing twin pregnancy
3. Placenta covering the internal os
4. Bleeding, degenerating fibroids
5. Partial molar pregnancy
6. Post removal of an intrauterine contraceptive device