This tiny baby girl who was born prematurely has finally gone home healthy after 108 days of care.

Born 15 weeks early, baby Leonie weighed just 350 grammes, and doctors were not sure that she was going to make it.

Her mother, who has been named only as Maike, 31, because of local privacy laws, went to the Helios Clinic in Hildesheim, in the northern German state of Lower Saxony, in mid-July, and was told that the placenta could not provide what the baby needed and she had to be born prematurely.

Dr Levente Bejo told local media: “With such a birth weight, the chances of survival were slim. She weighed half of what would be considered normal.”

After three weeks on a ventilator and being given drugs so that her lungs would develop properly, little Leonie luckily avoided the complications that typically come with being born early, such as a brain bleed or intestinal diseases.

Maike said: “It was an up and down of feelings, we didn’t know if she would pull through.”

Over the next few months, Leonie’s mum Maike and her dad Pascal visited their tiny daughter every day and when they were unable to, the nurses at the hospital would send them photos on their mobile phones, according to local media.

And now, 108 days later, just a few days after the original due date, little Leonie who now weighs a healthy 2.53 kilogrammes (5.57 lbs), has been allowed to go home.

Her breathing still needs to be monitored and she still needs minerals and vitamins, but this can be done from home.

Her Dad, Pascal, said: “We are infinitely grateful.”