Description
The pregnancy test marker refers to a substance detected in pregnancy tests that indicates the presence of human chorionic gonadotropin (hCG) hormone in urine or blood.
hCG is a hormone produced by the placenta after a fertilized egg attaches to the uterine lining. Pregnancy tests detect the presence of hCG, which is typically only found in the body when a woman is pregnant. The level of hCG increases rapidly in the early stages of pregnancy, doubling every few days.
