An unborn baby has been taken out of his mother's uterus to receive treatment and then put back into an innovative operation.
The procedure was carried out on Bethan Simpson's child after the tests revealed that he had spina bifida.
Ms. Simpson, 26, a nurse from Burnham, Essex and her husband Kieron had the option to terminate the pregnancy before they learned about the procedure.
She became one of the few British mothers to undergo the operation, which was carried out by a team of Belgian and British surgeons in London.
After a routine 20-week exploration, it was discovered that the baby's head was not the correct measurement and was later diagnosed with spina bifida, where the spinal cord does not fully develop in the uterus and can affect the ability to walk.
In a Facebook post, Ms. Simpson wrote: "Our midwife made an appointment in London. A 48 hour advance, we were in London with scans on his head and spine.
"With that they told us that our girl had spina bifida. We were offered to continue with the pregnancy, end the pregnancy or a new option called fetal surgery: correct it before birth. We had to do it.
"Our lives were a roller coaster for the next few weeks."
<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "MORE: Jeremy Corbyn says the Labor Party could endorse another EU referendum
MORE: rare tiger killed by his new potential mate at the London Zoo"data-reactid =" 59 ">MORE: Jeremy Corbyn says the Labor Party could endorse another EU referendum
MORE: rare tiger killed by his new potential mate at the London Zoo
The operation took place 24 weeks after Mrs. Simpson's pregnancy and involved surgeons from University College Hospital and Great Ormond Street Hospital.
They removed the baby from the womb and repaired his spinal cord before replacing it for the rest of the pregnancy.
Mrs. Simpson is the fourth mother in the United Kingdom to undergo the procedure.
She said: "I had the most recognized surgeons from around the world from University College London Hospital and Belgium taking care of me.
"We were successful, her injury was small and she broke the surgery as you would not believe, I'm frail and sore, but as long as she's well, that's what matters to us."
She added: "Unfortunately, 80% of babies in England are finished when their parents tell them that their baby has this condition.
"It's not a death sentence, it has the same potential as each one of us.
"Yes, there are risks that things go wrong, but think more about spina bifida, it is not what it used to be.
"I feel like our baby kicks me day after day, that has never changed, she's very special, it's part of the story and our daughter has shown how much she deserves this life."
-Look at the latest videos from Yahoo UK-