Spontaneous abortion
Products of conception expelled from the uterus before fetal viability
Classified according to types (see Types of spontaneous abortion)
Up to 15% of all pregnancies and 30% of first pregnancies ending in miscarriage
At least 75% of miscarriages occurring during the first trimester
Possible complications: infection, hemorrhage, anemia, coagulation defects, disseminated intravascular coagulation, and psychological issues of loss and failure
Also known as miscarriage
Causes
Fetal factors
Placental factors
Maternal infection
Severe malnutrition
Abnormalities of the reproductive organs
Thyroid gland dysfunction
Lowered estriol secretion
Diabetes mellitus
Trauma
Surgery that necessitates manipulation of the pelvic organs
Blood group incompatibility and Rh isoimmunization
Illicit drug use
Environmental toxins
Cervical insufficiency
