Abortions later in pregnancy typically occur because of two general indications: lethal fetal anomalies or threats to the health of the mother. Some fetal development problems or genetic anomalies do not show up or develop until later in pregnancy. Some examples might include anencephaly (described above) or limb-body wall complex, when the organs develop outside of the body cavity. With conditions like these, the fetus cannot survive out of the uterus.
Likewise, when conditions progress or appear that severely compromise a woman’s health or life, abortion may be the safest, medically indicated procedure. These conditions can also reduce the possibility of fetal survival. They might include premature rupture of membranes (where the fluid surrounding the fetus is lost before labor), uterine infection, preeclampsia, placental abruption and placenta accreta. Women under these circumstances may have extensive blood loss or septic shock that can be fatal.
It’s important to note, if a woman’s health or life is at risk and the fetus is viable, delivery is pursued, not abortion.