A miracle baby was born the size of a biro "into a plastic bag."

Betty Batt, from Warrington, was born premature at 23-weeks-old and weighing just 650 grams on June 17, 2017.

Mum Karen Batt, said it was "terrifying" knowing that her baby was coming into the world so early.

READ MORE: Police worker shouts and swears at driver for 'obstructing' speed camera

The 41-year-old and her husband Philip had sadly lost their son George when he was 22-weeks-old the year before Betty was born and the couple were left feeling "terrified".

However, Betty came into the world 'fighting' and was born the size of a "biro", with mum Karen describing her daughter's head as being smaller then the pen lid.

Speaking to the ECHO, Karen said: "Betty was born 23 weeks gestation, she was very, very tiny but was a relatively good weight for a 23-week baby and she was 650 grams.

"It was quite an incredible fight, after having two full-term babies, the largest of which was nine pound six, it was a huge, huge difference.

"We have pictures of her next to a biro, if you imagine a BIC biro her head was probably a little smaller than a pen lid.

"It's hard to grasp how tiny she was.

"But she was very feisty and continues to be very feisty which I think put her in good stead.

"It was pretty terrifying if I am honest because we have Stanley and Martha who are older and they were only seven and nine and sadly the year before Betty we lost a little boy, George.

"He was born at 22 weeks and he was only with us for two hours and there was very little they could do to help us.

"So when we knew Betty was going to make an early entrance we were terrified."

Betty Batt, from Warrington, was born the size of a "biro" at 23-weeks-old
Betty Batt, from Warrington, was born the size of a "biro" at 23-weeks-old

Karen was whisked from Warrington Hospital to Liverpool Women's in preparation for the early birth and so Betty could be placed on a high level intensive care unit "to give her the best chance."

Betty was placed into a "plastic bag" which is used to prevent hypothermia in extremely low and very low birth weight children.

The mum-of-three added: "We didn't know she was a she at that point.

"We sat tight and I think we lasted about six or seven days and then she came into the world feet first into a little plastic bag."

Karen said the family's journey was a difficult one and they described it as a "snakes and ladders game."

She added: "People would say it was like a rollercoaster journey but we described it as snakes and ladders.

"It was like you climb a ladder on a good day and you think 'oh she's doing well', critically ill but in a stable place.

"And then she would just slide down the snake and it was just terrifying and we wondered whether she would ever get back up the ladder."

Betty Batt, from Warrington, was born the size of a "biro" at 23-weeks-old
Betty Batt, from Warrington, was born the size of a "biro" at 23-weeks-old

Betty suffered perforations, sepsis and multiple infections and had to go to Alder Hey Children's Hospital from Liverpool Women's for surgery.

The baby's first surgery was when she was just five-weeks-old and weighed only 800 grams.

The family were also told during these journeys for operations from the two hospitals that it was "touch and go" and that Betty might not make it through.

However, Betty did and she moved to paediatric care at Alder Hey to make her oxygen and feeding stable.

But the family were dealt a setback in getting Betty home when she suffered a respiratory arrest on the ward.

She was given a tracheostomy which Karen said was "a lot to come to terms with but the right thing to do" and the family had to train in providing Betty's medical care.

Miracle Betty eventually came home from hospital 13 months after she was born on July 2018.

Karen said the now four-year-old is doing great and is an "absolute joy and never stops smiling" and has some complex needs including a tracheostomy and feeding tube.

The mum said: "Betty is small but mighty.

"She brings the best out in everyone and we love her to pieces and she brings a lot of happiness to our family."

Betty was chosen as an ambassadors for this year's #TogetherForAlderHey campaign, with all proceeds going towards the new neonatal surgical unit at Alder Hey.

The new surgical NICU is a joint project between Alder Hey and Liverpool Women’s NHS Foundation Trust as the Liverpool Neonatal Partnership.

The new unit is planned to offer a further 22 neonatal cots for Liverpool and will feature 18 individual family rooms where parents can be alongside their poorly new-borns whilst they’re receiving expert care.

The unit will address a shared concern between Liverpool Women’s and Alder Hey that babies who need specialist surgery currently have to be transferred to Alder Hey to get the specialist surgical care they need and are then transferred back to Liverpool Women’s Hospital to continue their specialist neonatal care.

Karen said the family have joined forces with Alder Hey so that they can help other families and remove the "terrifying journeys."