Dr Bernadette Carr answers your questions on constipation and kidney infections

Q. My nine-year-old son suffers from constipation. He eats Weetabix every morning with freshly-milled linseeds and has an apple every day.

Is there anything else I can do other than use medication?

A. Constipation can be a very common issue in children, they may pass stools very infrequently or pass very hard stools.