In damp areas such as the bathroom repairing cracked tile should be done sooner rather than later to reduce the risk of water damage.
Repair cracked floor tile without replacing.
Use a notched trowel to spread adhesive on the back of the replacement tile image 2 and set it in place.
After the grout dries wipe the tiles with a damp cloth or sponge.
You may be able to patch a hairline crack but a bigger break will need a replacement tile.
If you have ceramic glazed tile and cracks here is an easy fix.
Allow the adhesive to dry for the amount of time recommended by the manufacturer then fill the grout lines with grout available in squeeze tubes for minor repairs image 3.
I don t think painting the tiles can be effective solution to repair broken tiles instead if we replace the tiles it can be a effective method applying glaze can fill the crack but that doesn t looks much good re grouting is very effective in such cases.
It goes without saying the problems you have if the broken tiles are in your shower or bath.
If 1 or more of your floor or counter tiles have cracked whether from regular wear and tear or from having a heavy object dropped on them you don t necessarily need to replace the cracked tile.
Cracked floor tile can be an opening for moisture to get through to your sub floor especially if it s in a bathroom.
Find a nail polish or a combination of polishes and mix to match your tile.