Genetic testing in Liuzhou, Guangxi Zhuang Autonomous Region, recently revealed a 70-year-old "woman" surnamed Zhang to be, in fact, a man.

Zhang, who has a normal female vagina and breasts and has been married for 50 years, recently arrived in a local hospital to see doctors after she began to grow testicles two years ago. At first, she had mistakenly believed she had a tumour.

Zhang's chromosome indicated she was in fact a man, doctors said, adding that it was still unknown why Zhang had grown women's features.

Zhang who never gave birth to a child, adopted a son when she was 30.

Nanguo Jinbao