Radiotherapy uses high energy x-rays which destroy cancer cells. Before treatment begins, it is necessary to undergo what is known as 'planning'.

This allows the radiotherapist to work out the exact position in which to place your child, and ensures that treatment is given to exactly the right place to kill cancer cells each time.

Radiotherapy is painless and usually only takes a few minutes each day. During the treatment the child must lie perfectly still. This is to ensure precise delivery of the radiotherapy. Sometimes an anaesthetic is needed.

Radiotherapy is given daily and the duration of the course of treatment is variable according to your child's type of cancer. Your radiotherapist will discuss the side effects of radiotherapy prior to your child's treatment.