A teenage male skateboarder ended up in hospital on Tuesday after he held on the back of the family car driven by his mother, lost his grip when the vehicle made a right turn and fell onto the road, the Sydney Morning Herald reports.

The woman, who drove at about 6:30 p.m. from their residence in Ebony Row, Menai, was aware that her 14-year old son was holding onto the back of her automobile while aboard his skateboard. The problem came when she turned right at The Woods Circuits, causing the son to lose his hold.

Senior Sergeant Peter Jenkins of the Metropolitan Crash Investigation Unit in Sutherland estimated that the son was towed for about 130 metres before the accident.

She immediately rushed him to St George Hospital and was treated for bruises on the face, lacerations and soft tissue damage. He is already in stable condition.

Mr Jenkins reminded skateboarders that the practice of latching on to a moving car is not recommended, even for experts in the sport.

"It's usually something we associate with younger people, not a mum and son," Mr Jenkins told the Sydney Morning Herald.