Vaginal bleeding during pregnancy can be dangerous, so any signs of blood loss must be taken seriously and brought to the attention of your doctor. Bleeding during the first trimester or the first three months of pregnancy can lead to complications in this stage varying from mild spotting to a heavy flow. Bleeding during the second and third trimester is usually a cause for concern as it abnormal. However, any form of bleeding past the 28th week of pregnancy seldom bodes well. It may be accompanied by abdominal pain. In fact, hemorrhage can lead to the death of both the mother and child.

Bleeding during pregnancy can result for various reasons. First trimester bleeding is not necessarily a cause for concern.

Implantation Bleeding

A small amount of bleeding resulting from the blastocyst attaching to the uterine wall is called implantation bleeding. This can be worrisome if you are trying to get pregnant, but implantation bleeding is a common early pregnancy symptom reported by Indian women.

Possible Miscarriage

If you experience bleeding and cramping, then it may signal a threatened miscarriage. Only time will tell the outcome of your pregnancy. Factors ranging from physical trauma to certain medications all the way to urinary tract infections can trigger a miscarriage. The bleeding may resolve on its own in a few hours with the pregnancy continuing or one could bleed until the uterus is empty as seen by an ultrasound; thus ending the pregnancy.

Ectopic Pregnancy

Bleeding due to an ectopic or tubal pregnancy or can be dangerous as the fertilized egg implants in the fallopian tube and threatens the rupture of the fallopian tube itself. This hemorrhage can cause life threatening bleeding and is considered the most dangerous reason for early pregnancy bleeding.

Blighted ovum

When the embryo does not develop even after implantation in the uterus, bleeding can occur in order to signal the end of the pregnancy as the body gets ready for the next menstrual cycle.

Molar pregnancy

If your uterus shows abnormal tissue inside it in place of a developing foetus, bleeding can occur. This tissue is most likely a tumour and can spread through the rest of the body.

Late Pregnancy Bleeding can be dangerous to both the mother and child.

Placenta Previa

When the placenta covers the cervical opening to the womb, bleeding can occur from this and is referred to as placenta previa. When the cervix dilates and thins in training for labor, the vasculature of the placenta can rupture and is a common cause for late pregnancy bleeding.

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