A woman in northwest China, known by the surname Li, has garnered worldwide attention after giving birth to twins from two separate uteruses.

This rare condition, called uterus didelphys, affects only 0.3% of women globally.

Li delivered a healthy boy and girl early September at Xi'an No 4 Hospital in Shaanxi province when she was eight and a half months pregnant.

The babies weighed 3.3kg and 2.4kg, respectively.

Cai Ying, a senior obstetrician, termed it a 'one in a million' event, noting that natural conception in both uteruses is extremely rare.

Li had a previous miscarriage at 27 weeks and was monitored closely throughout her latest pregnancy.

She underwent a caesarean section and was discharged with her twins four days post-delivery.

A similar case occurred in Alabama, USA, last December, where a woman also delivered twins from two uteruses.

Uterus didelphys results from incomplete fusion of small tubes in the female fetus, sometimes leading to two cervixes and a divided vagina.

Women with this condition often face high risks during pregnancy, including miscarriage and premature birth.