Babies born before the full gestational period are not fully developed. There are different levels of prematurity, and generally the risk to the baby's health increases the earlier the birth is - babies at highest risk are those born before week 26.
Around 60,000 babies are born prematurely each year in the UK and many suffer lifelong consequences as a result. Premature birth is the leading cause of neonatal death in the UK.
If we are to improve outcomes for babies it is crucial that we focus on research to improve prediction, prevention and treatment of preterm labour.
A premature (or preterm) baby is an infant born earlier than usual, before 37 weeks pregnant.
Around 60,000 babies are born prematurely each year in the UK and many suffer lifelong consequences as a result. Preterm birth is the leading cause of neonatal death in the UK.
Emilia Grabarczyk's parents were warned her chances of survival were slim due to being so very small. She's now nine months old.
Mother's lullaby is a hit as preemie babies are found to respond well to the sound of their mother's singing
Test have found that the sound of a mother's singing can help stabilise a premature newborn’s breathing rate.
Lily is taking part in Tommy's Danceathon with her babyballet class to help more families get the answers they deserve
Born at 34 weeks weighing 4lbs 12 oz, Lily is now 19 months old and thriving.
Inspirational Olympic record breaker weighed just twice the weight of his Olympic Gold medal when he was born three months prematurely
Wayde van Neikerk, born at little more than one kilogram, has gone on to break an Olympic record in the men's 400m.