Problem
The bathroom faucet handle is stiff or difficult to turn.
Possible Causes
Mineral buildup
Worn faucet cartridge
Corrosion inside the faucet
Old plumbing components
How To Fix It
Turn off the water supply
Remove the faucet handle
Inspect and clean the cartridge
Replace worn parts if necessary
When To Call A Professional
If the handle remains difficult to turn, the faucet cartridge may need replacement.