Amniotic band syndrome is a condition in which fibrous bands of the uterine lining wrap around the fetus. These bands may form compressive rings around the fingers, toes, arms, or legs. In some cases, this constriction interferes with development of the limbs resulting in congenital amputations. In other cases, the tight bands may interfere with blood flow to the affected digit or limb thus affecting growth. Other limb abnormalities that may result from amniotic band syndrome include clubfoot and multiple joint contractures.