A study has been able to establish and also indicate that one quarter of teenage mothers expect their first kid even before they turn 20, and that they are at definite risk of a preterm birth the second time around, too.

These teenagers are 93% more probable than adult women to give birth before time, which prompts experts to caution that something should be done, so as to prevent girls from becoming pregnant again without delay after giving birth to their first child.

Researchers at the University College Cork in Ireland, who carried out the survey of no less than 55,000 births, demanded that added health and sex education should be offered, in order to prevent the 'biological immaturity' of young mothers from causing harm to their babies' prospects.

Premature babies are usually defined as those that are born prior to 37 weeks pregnancy and are more vulnerable to a variety of medical problems and are at a higher risk of dying in the initial year of life.

The study of kids born to mothers, who were aged between 14 and 29, while giving them birth in the North West of England found that younger teens were more prone to premature birth than older teenagers.