HOW DO I "REPAIR STAINED MIRROR IN BATHROOM?

Hello could you post a picture of your problem or give some details. Is it a surface adhesive issue or a damage or loss of silver on the reverse side. More information could be helpful to get personalized reply that could help.

How to Repair a Discolored Mirror

https://www.hunker.com/13416751/how-to-repair-a-discolored-mirror

Are they water stains? Here's a link to help you:

https://www.thecleverhomeowner.com/how-to-clean-water-stains-from-bathroom-mirror/#:~:text=%20%287%20Easy%20Steps%29%20How%20To%20Clean%20Water,large%20washing%20cloth%20soaked%20in%20warm...%20More%20

Are you trying to get rid of the stains? Do you know what the stains are from? I'd try spraying it with dissolved oxiclean powder and see if that removes the stain.

It depends on the type of stain. I would treat it just as any other surface unless it’s paint. I that case you can scrape it off

That needs to be done from behind the mirror

It really depends on weather its the mirror coming off from the back of the glass or an actual stain ON the glass. Have you trued gently taking a razer blade to it?

If it's along the edges you can frame the mirror. If it's anywhere else more likely moisture got behind the mirror and affected the silvering. That can't be repaired

This shows how to remove a stain on a mirror: https://www.youtube.com/watch?v=6zX38Sjxya0

Hi! Most stains can be removed from glass. Is the stain on the frame?

Hello, no frame at all. the mirror is placed directly on to a wooden door

If you have a dark spot then this page may be able to help you out

https://hayesplumbing.ca/mirror-repair-get-rid-blacks-spots-cracks/