Millions wasted in screening overdiagnosis

Advances in screening technology were a major contributor to detecting abnormalities that would not have caused symptoms, the article's authors including Bond University's Ray Moynihan wrote.

The trend towards overdiagnosis posed a significant risk to individuals' health, with estimates about $200 billion is spent every year in the US on unnecessary care, an article published in the British Medical Journal (BMJ) on Wednesday said.

Mr Moynihan said screening the healthy population was a double-edged sword.

While it made sense to