What condition is characterized by an overproduction of growth hormone in adults?

• A. Gigantism
• B. Diabetes
• C. Acromegaly
• D. Hyperthyroidism

Answer: (C)

Acromegaly is the condition characterized by an overproduction of growth hormone in adults. This excessive production of growth hormone typically results from a benign tumor on the pituitary gland called an adenoma. In acromegaly, the elevated growth hormone levels lead to abnormal growth of bone and soft tissues, resulting in distinctive changes in physical appearance, such as enlarged hands, feet, and facial features.

Unlike gigantism, which occurs in children and leads to excessive growth before the growth plates have closed, acromegaly causes changes in adults after bone maturation has occurred. The other conditions listed, such as diabetes and hyperthyroidism, do not involve the overproduction of growth hormone and manifest with different symptoms and physiological changes. Thus, acromegaly is specifically associated with the negative effects of excess growth hormone, making it the correct answer.