YONGKANG, Chn - The man went to the doctor over what he thought was a stomach ache.
It turns out, he was menstruating.
Doctors at the First People's hospital in Yongkang, China confirmed the discovery after performing a CT scan and finding a uterus and ovaries in their surprised patient, named Chen.
"He had short hair and was dressed in man's clothes. We did not realize he was a female at first," said a doctor told the Global Times.
Also discovered and removed, was a benign adrenal tumor.
Doctors say Chen suffers from adrenogenital syndrome. The condition obstructs the development of genitals and affects other gender features.
There is good news for Chen, his/her ailment is treatable with hormone supplements.
Chen told doctors he has had no issues having intimate relations with his wife of ten years.