Companies are selling full-body MRI scans to healthy people who feel fine, but doctors don’t agree that these scans actually help or are worth the cost.

We don’t have enough solid proof yet to say that scanning the whole body with MRI helps healthy people find problems early or saves money.

Some people think that getting a full-body MRI scan might help find several health problems at once and save you from having to do lots of separate tests — but this hasn’t been proven yet.

Using whole-body MRI to check healthy people without any symptoms isn't like regular screenings because it's unlikely to find serious problems, and many diseases just can't be seen well with this scan.

Using whole-body MRI to screen everyone for cancer isn't a good idea right now because it often misses cancers, finds too many harmless things that cause worry, isn't done the same way everywhere, and we don't know if it actually helps people live longer or healthier lives.

We don’t have enough long-term data to know if getting a full-body MRI scan when you feel fine actually helps people live longer or saves money — so doctors can’t say if it’s worth doing.