- H Morgan,
You didn't mention if the swelling was hot or painful to the touch or if she had/has a fever. Will she let you check and clean between her utters? From your description it sounds more like a bug bite and not related to her heat cycle. When horses get bug bites in their groin area or under bellies the edema from the bite drains forward toward their stomachs due to gravity, leaving a large swelling that goes away after a couple of days. If the swelling is not gone in a few more days or if you notice it getting worse you should contact your vet and have them take a look just to make sure.
--- In firstname.lastname@example.org, "morgan" <incinderator@...> wrote:
> Hello I am new posting here and have a question. I have a 10 year old thoroughbred mare( very Marey mare) I noticed that after her heat cycle her udder is swollen on one side. It was very hard and was about a foot long from her udder to her stomach. Now I checked her two days later and it seems to be breaking up. Not one long line of hard?? But in chunks now. I dont know how to explain it. Is this normal sometimes for a mare coming out of her heat cycle? I have never noticed this on her before and am concerned about it..... Morgan