For ages lots of you have complained your school loos are dirty and dingy, and now it seems people in charge of schools in Wales are listening!
They're going to inspect toilets to find out if they're up to scratch, and work out how they can be improved.
At the moment, there are no plans for a big survey of toilets in Scotland, Northern Ireland or England.
The people in charge say they realise clean loos are important, and are working hard to make sure you get them.
In Wales, school inspectors found more than half of toilets in primary schools were dirty, or not up to standard.
People carrying out the review will try and find out what facilities - things like soap and toilet paper - are available at the moment, and look at how they can be improved.