The Federal Government has been accused of not doing enough to persuade people of why they should be using My Health Record, amid a surge in the number of those choosing not to join the online platform.

Yesterday, Prime Minister Malcolm Turnbull confirmed that around 20,000 people opted-out of the electronic medical record system on the first day of a three-month opt-out period.

Around six million consumers are voluntarily registered on the national database since it's launch in 2012.

But the decision to automatically create online user accounts from October has some people worried about the safety of personal information under government-run systems.