Vaginal bleeding during pregnancy has many cause
Occur when fertilized egg implants and grows outside the main cavity of the uterus. Most often it occurs in a fallopian tube, called Tubal pregnancy.
Sometimes, an ectopic pregnancy occurs in other areas, such as the ovary, cervix.
Miscarriage is caused by:
Is a rare complication of pregnancy characterized by the abnormal growth of trophoblasts .The placental tissue is abnormal.
During pregnancy, the cervix softens, shortens and dilates so you can give birth. Incompetent cervix occurs when the cervix opens too early and silently during the pregnancy. Incompetent cervix is also known as cervical insufficiency.
Called a ‘low-lying placenta’, is when the placenta is attached in the lower part of the womb. Placenta previa occurs when a baby's placenta partially or totally covers the mother's cervix. Placenta previa can cause severe bleeding during pregnancy and delivery.
The placenta attaches itself too deeply and too firmly into the uterus.
Baby unexpectedly arrives sooner: Preterm, or premature, labor occurs after week 20 of pregnancy .