A rare disorder caused by too much growth hormone.
Growth hormone is released by the pituitary gland and circulated around the body in the blood stream. In children, growth hormone stimulates growth and development. In adults, it affects energy levels, bone health, and muscle strengths. Acromegaly is usually caused by a tumor on the pituitary gland. People with acromegaly have distinct physical characteristics including large hands and feet, thick lips, jutting jaw and forehead, widely spaced teeth, and coarse facial features.