She lives with her grandparents who regularly shave her face and body to remove her unwanted hair.
Her grandparents say they no longer take Cian Cian into the city because people stare and ask why she's "so hairy".
"Even at kindergarten each morning, people look at her and ask me why she is so hairy. Questions like that make me feel very bad," said the grandma.
The little girl, whose parents are divorced, says classmates at kindergarten in her village near Chonqing tease her.
But she is happy at home.
"I love my grandparents, especially my grandma, they are good to me." "I want to be a scientist when I grow up so I can find out what's wrong with me." Cian Cian telling the Chongqing Evening Post.
Doctors at Tongliang People's Hospital, where she was treated after suffering a recent epileptic fit, are mystified by her condition.
"There is nothing like this in her family going back three generations so it doesn't appear to be genetic." Said Doctor Chu Hongbo
China's hairiest man, Yu Zhenghuan, had first found fame at 7, in a movie entitled 'Monkey Boy's Treasure Safari'.
But last year, he was turned down for the lead role in a major Chinese TV show, the Sun reported.
Producers had given him only a small supporting role in 'Journey To The West', the story of a monkey helping his Buddhist master, because he was not handsome enough.
Now, the aspiring actor is determined to have plastic surgery to better his chances of getting bigger acting jobs and to enhance his appearance in a bid to gain international movie stardom.
He planned to have surgery to slim down his nose, to stop too much hair growing on his face, and to have an operation to stop hair growing out of his ears and nose - which causes him difficulty breathing and hearing.
Yu suffers from a hormonal imbalance, which causes thick black hair to cover 96% of his body.
The operation is to be perform at the Military Guangxi General Hospital in Nanning, capital of southern China's Guangxi province.
He is the owner of a music company and a contract singer for a Hong Kong culture company.