Amniotic Band Syndrome
What is Amniotic Band Syndrome (ABS)?
Amniotic band syndrome (also known as congenital constriction band syndrome) occurs when a fetus becomes entangled in fibrous, string-like strands, called amniotic bands, while in the womb. Because the fetus continues to grow and the bands do not, they restrict blood flow and disrupt the fetus’s normal growth and development.
In some cases, the strands might be wrapped so tightly that they cause severe deformities to the face, arms, fingers, legs and toes. The most severe cases of ABS can be fatal.