Physical features that are most common with this condition include a small upturned nose, a lengthy
space between the nose and upper lip, a wide mouth, full lips, a small chin, and puffiness around the eyes.
Heart and blood vessel problems are also caused by WIlliam's syndrome. Most people with this condition
experience a narrowing in the aorta or narrowing in the pulmonary.
Hypercalcemia is when one experiences elevations in blood calcium levels.
Those with William's syndrome also have a low birth-weight and low weight gain.
