Small pituitary adenomas are common, affecting about 17 percent of the population. 1 However, research suggests most of these tumors do not cause symptoms and rarely produce excess GH. 2 Scientists estimate that three to four out of every million people develop acromegaly each year and about 60 out of every million people suffer from the disease at any time. 3 Because the clinical diagnosis of acromegaly is often missed, these numbers probably underestimate the frequency of the disease. 
How many people are affected by Acromegaly ?