Siemese is seeing spots!

[immortal1643]

Hello ...
I have s question about my siemese cat... She's allmost 2 years old..
About 6 months or so i noticed a spot on her hind quarters , about 2in round...her hair was thinner and darker in this area..
I didn't think to much of this...
But within the last 2 months it's gotten alot bigger...She acts fine..plays and does all the things cats do...
Should i have a vet look at this?
Thanks

[davet]

you had better get it checked for ring worm before you end up with spots like that on your butt...or elsewheres