Yao Defen of China claims to be the tallest woman in the world, with 7′ 8″ (233 cm). She weighs 200 kg (440 lbs) and has size 26 (UK) / 78 (EU) feet. Her gigantism is due to a tumor in her pituitary gland.

Yao Defen was born to poor farmers in the town of Liuan in the Anhui province of Shucheng County. At birth she weighed 6.16 pounds. At age 3 she was eating more than three times the amount of food that other three-year-olds were eating. When she was 11 years old she was about 6 foot 2 inches tall. She was 6 foot 8 inches tall by the age of 15.

The story of this “woman giant” began to spread rapidly after she went to see a doctor at age 15 for an illness. After that, many companies attempted to train her to be a sports star. The plans were abandoned, however, because Defen was too weak. Because she is illiterate, since 1992 Yao Defen has been forced to earn a living by traveling with her father and performing.

Yao Defen’s giant stature was caused by a large tumor in the pituitary gland of her brain, which was releasing too much growth hormone and caused excessive growth in her bones. Six years ago, a hospital in Guangzhou Province removed the tumor, and she stopped growing.

The tumor returned and she was treated in Shanghai in 2007, but was sent home for 6 months with the hope that medication would reduce her tumor enough to allow surgery. It remains unknown if the second surgery was ever performed.

See Yao Defen. Watch the video below