A stillbirth is a condition in which a fertilized egg implants in the uterus but fails to develop into a mature fetus and dies or remains in the cervix. The fetus is most likely to die in the first or last trimester.

The uterus is the cradle for the fetus to develop, and is also the place where women have their monthly menstrual cycle. With such an important role, the uterus is also the place with the most ups and downs in obstetrics and gynecology.