The urge to write is like a congenital birth defect.
Another very rare birth defect called exstrophy can also increase a person's risk of developing bladder cancer later in life.
Since the specific cause of this birth defect is unknown, there is no way known as of 2004 to prevent biliary atresia.
Neural tube defect, for example, is a birth defect in which the neural tube that forms the spinal cord does not close completely.
In this case, the birth defect usually presented itself as very small, deformed versions of normal limbs.