What was Robert Wadlow's cause of death? Learn about the medical conditions that affected the Giant of Illinois and how he passed away at just 22 years old.

Doctors eventually diagnosed Robert Wadlow with hyperplasia of the pituitary gland, a condition that caused rapid and excessive growth due to an abnormally high level of human growth hormones in the ...

Wadlow in 1918. Harold Franklin Jr., Betty Jean, Eugene Harold, and Helen Ione were born later to the family. At birth, Robert weighed 8.4 pounds (3.8 kg) and measured 1 ft 8 in (0.51 m). As a newborn ...