Premature separation of<unk> from uterus
Usually occurs spontaneously but also associated with trauma (even minor trauma)
Usually occurs at >15 weeks gestation
Must be considered in patients who presenting with painful vaginal bleeding near term<unk>  may be complete, partial, or concealed
Amount of external bleeding may not correlate with severity
Amount of external bleeding may not correlate with severity
Hypertension- Most common
Trauma
Smoking
Advanced maternal age 
Multiparity
Preeclampsia
Prior<unk> 
Thrombophilia
Cocaine abuse
History of C-section or other uterine symptoms
Placental abruption
The same abdominal pain differential as non-pregnant patients, plus:
Uterine rupture
Ectopic pregnancy
Vasa previa
First trimester abortion
Placenta previa
Complete abortion