Amniotic band syndrome

ABS occurs when the fetus becomes entangled in fibrous string-like amniotic bands in the womb, restricting blood flow and affecting the baby’s development.

If a band wraps tightly around a limb, the limb can actually be completely amputated. If the band is across the baby’s face it can cause cleft palate. In a large number of cases the baby is also born with clubfeet. ABS is also the cause of numerous miscarriages, such as when a band becomes wrapped around the umbilical cord. ABS occurs randomly. It’s not genetic, nor is it caused by anything a pregnant Mom did or didn’t do during pregnancy. Just because a person already has one child with ABS, that doesn’t make it any more likely that it’s going to affect a future pregnancy.