A woman and her newborn daughter have both survived after the unborn child kicked so hard that her leg poked out of her mother's womb.
The news was shared by doctors on the Facebook page of Peking University Shenzhen Hospital in China.
The expectant Ms Zhang was rushed to hospital in critical condition after she complained of severe stomach pain that lasted for hours.
The baby and her mother are said to be recuperating and in stable condition following the life-saving operation. Fibroids are tumours that grow in a woman's uterus. Doctors suspected that she had a uterine rupture near where a previous incision had been done.
Ms Zhang was immediately taken under the knife and her baby was born through C-section about 10 minutes later. "Uterine rupture during pregnancy is a rare event and [usually] results in life-threatening maternal and fetal compromise", it says.
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Surgeons Dr Zhang Lei, Dr Zhang Yanping and Dr Zhong Shilin said amniotic fluid had begun to leak through the 7cm break into the abdominal cavity.
He also suggested those women to have a complete check on their reproductive system before they decide to get pregnant. Only 26 cases are said to have been reported worldwide.
The 33-year-old mother, who had previously had five C-sections, gave birth to a healthy boy via a caesarean section.
But after a scan, doctors saw the baby's leg in a odd location.