Zeng Yushan was born in June 1994 in the township of Huzhu in Fushun County in south-western China's Sichuan Province.
At seven years old, she stopped growing and was diagnosed with a tumour on her pituitary gland, which caused a deficiency in growth hormones, reports Asiantown via Mail Online.
Instead of going to school, Zeng was used as a child beggar due to her young appearance. After her father died in 2013, leaving her alone, she was taken in by a couple who have taken her to the doctor. They hope to take her to a specialist soon to see if anything can be done about her condition.
She is now getting regular medical care and although she is 20, still looks as if she is seven or eight-years-old and has the mental ability of a child aged around five or six.
Her biggest wish is to be able to go to school, even though no schools at the moment will take her because of her real age rather than her apparent age.