'Small head' research

Researchers will work with up to 70 children that have the disorder

A condition where a child's head does not grow at the expected rate is being researched by doctors in Sheffield.

Acquired microcephaly is a neurological disorder which develops after birth.

The project, funded by Sheffield's Children's Appeal, aims to gather information to help doctors and inform parents about subject which has little research.

Dr Peter Baxter said: "Microcephaly means that a person's head, and their brain, is smaller than expected.

"Although some babies are born microcephaly, it can develop after birth, when it is called acquired microcephaly.

"This can sometimes be caused by brain injuries such as lack of oxygen or infection, but in most children no cause is recognised."

At the moment, doctors cannot advise parents what the condition means for their child.

Researchers will be working with up to 70 children who suffer from the condition to create a standardised protocol which will help doctors define the condition in more detail and give practical advise to parents.

The Children's Appeal is based at Sheffield Children's Hospital, focusing on research, prevention, care and cure of childhood illnesses.