It is probably the fill valve.
Toilet that sprays water up.
But only some germs are pathogens i e disease carrying agents that.
Follow the water supply line from the water stop located on the wall and or floor to the bottom of the toilet tank.
So does basically everything else on the planet.
You can typically resolve these problems on your own.
Constantly cleaning a toilet seat.
In some cases the standpipe line is damaged or misaligned and this can cause water to spray up against the underside of the lid and potentially leak from the bottom of the toilet.
Several factors can cause toilet backsplash.
A toilet that splashes too much when flushing is an irritating problem.
Well what really causes that matt is a venting problem.
That is the worst.
During the filling stage the water is supposed to flow down the standpipe to refill the bowl and the toilet trap.
When you take the tank lid off you may see a small tu.
Nobody wants to sit on or have to continuously clean up water that keeps splashing out of the toilet.
Well when we flush the toilet a good portion of air comes up through the trap forcefully enough to cause the water to splash up onto the seat or the inside of the lid if it s closed.
Yes toilet water sprays when you flush and yes that water contains germs.