If it comes loose the wax ring will not provide the proper seal and your toilet will start leaking at the base.
Toilet leaking on floor.
Review the troubleshooting section in the article fixing a leaking toilet to locate your problem.
For other toilet issues you want to take a look at fixing and troubleshooting toilets this has a complete listing of toilet problems along with solutions.
Check if your toilet is tightly bolted to the floor.
The damage from a toilet leaking at base.
You ll have to track down the cause of the leak fix it and then provide a solid surface that supports the flange.
A toilet flange that s been leaking can cause the floor to rot the flange to loosen and the leak to get worse.
Rock the toilet gently to break its seal then lift the toilet off the flange and set it on its side.
Leave a gap in the caulk at the back of the base so if or when the toilet leaks at the floor gasket the leak will manifest without creating a mold farm or dripping through to the ceiling below etc.
With a wrench loosen the toilet mounting bolts or tee bolts that hold the toilet to the floor.
If you neglect to repair your leaky toilet there can be some negative outcomes.
Other parts of the toilet may be leaking and creating water on the floor.
Water on the floor or a running toilet could signal the need for a minor repair a major one or even a new toilet and a few simple tests can help.