How to update a bathroom mirror

https://www.pinterest.com/explore/bathroom-mirror-redo/?lp=true

you could put a wood frame around it. I have also seen in high end homes where the frame is smaller than the mirror by several Inches. It is centered on the mirror. Looks great

Put a frame on it. Either a frame surrounding the glass or one stuck to the surface of the mirror. If glued to the mirror surface be sure to finish (stain or paint) the back inside edge of the frame (it will show in the mirror).

We had a full wall mirror in our guest bath and it was ugly! Getting ready to sell our house, I had to do something, so I purchased 1" glass tiles from Home Depot and LocTite adhesive in a tube. The tile came in sheets and I chose a copper and gold metallic finish to compliment our bathroom decor. I glued the tiles in a double row around the mirror, forming a tile frame. What a difference , and for a very minor expenditure!

Hello LIsa, Have you considered peel and stick faux glass tiles? https://www.youtube.com/watch?v=RdIA_8I3k2I

https://www.youtube.com/watch?v=dM3tErWoIXk

https://www.youtube.com/watch?v=-wmP2zGa7Eo

OR perhaps you just want to add a frame?

http://www.diynetwork.com/videos/frame-a-mirror-95367

https://www.youtube.com/watch?v=y3CDu6IVxrw

https://www.youtube.com/watch?v=MrexYN0eQ2A

AND HERE are LOTS of ideas on how to use E6000 glue and some flat backed glass gems to add an updated imaginative, artistic, classy style to a boring bathroom mirror. Scroll through these to get your creative juices flowing:

https://hu.pinterest.com/pin/454933999841945485/?lp=true

Good Luck Lisa. Enjoy your "new" mirror, and thanks for asking HOMETALK for some ideas on how to update a bathroom mirror ;)