The Involuntary loss of a pregnancy before fetal viability (20
weeks gestation). Spontanous abortion is also known as miscarriage. The stages of spontaneous abortion (miscarriage) may include:
- Threated abortion - (pregnancy may continue)
- Inevitable abortion - (pregnancy will NOT continue and will proceed to incomplete or complete abortion
- Incomplete abortion - (produces of conception are partially expelled)
- Complete abortion - (products of conception are completely expelled)
Vaginal bleeding may be heavy or excessive. The mother may present in a state of shock due to products of conception becoming trapped in the cervix (incomplete abortion),