[llcornell]

I have a couple questions I have a foster dog who is age 7 and for several reasons cannot undergo anesthesia. She will be a forever foster and has no possibility of ever being near other dogs or unaltered males. A couple weeks ago her peepee swelled huge and her nipples enlarged but she never bled...they went down after about a week? Is this her heat?
Do heat cycles stop as they age?
Any information on what to expect at her age being unspayed would be appreciated.