This is the big worry with females.
Benign mammary tumors are quite common.
Removal of the tumor will be less risky if the tumor is still small and
spaying her will be of a great benefit to her.
Spaying reduces the recurrence of mammary tumors. When one tumor starts to
grow, you can be sure there are more about to come out.

Please keep us posted, hopefully it will be better news, like an abscess or
something like that...
--
Joanne
Mom to 12 rats
http://community.webshots.com/user/joanneb70