Growth Hormone Deficiency (GHD) is a medical condition in which the body does not produce enough growth hormone (GH). Growth hormone, also called somatotropin, is a polypeptide hormone which stimulates growth and cell reproduction. HGH also refers to human growth hormone but this older abbreviation has begun to develop paradoxical connotations, particularly in relation to the peddling of medically unnecessary GH supplementation. Growth hormone deficiency has different effects at different ages. In newborn infants the primary manifestations may be hypoglycemia or micropenis, while in later infancy and childhood, growth failure is more likely...