Mike Carrott is a fit 32 year old man who exercises once or twice a week. He weighs 80Kg and doesn't smoke or drink alcohol.

He has been married to Sue for three years, and they have been attempting to have a child for the last two years. They have decided to seek help through their GP.

He is the youngest of three boys and neither of the other brothers have children, despite trying for 3 and 4 years respectively.