Wierd place on horses stomach

Keep an eye on the size...if it gets at all bigger in the next couple days, I'd guess it needs to be lanced. If it's a seroma, they just keep getting fuller and fuller till they're REALLY ready to burst and leave a really ugly wound. The pain subsides as they get bigger, but that's not a good sign.

Good luck! :)

The places looked smaller to me today. The one right behind her front leg still doesn't look good, but still I think it's made an improvement. The other one looked really good..almost completely gone.

I will check it again tomorrow.

Thanks everyone for your help!

Kind of sounds like a reaction to something; bug bite, or some kind of plant perhaps.

My gelding got stung by something out out the trail, which I only knew because he was shaking his head frantically, but I never did see what did it. The next day the left side of his face was swollen but it went away in about two days.

It could be an infection, but the odds are as good or better it is some type of insect sting or bite and it will go away in a few days. If not, then you can always call the vet out. But in my experience odd insect bites and swellings that go away in a few days are pretty common.

Oh, and my mare had a tennis ball (diameter) sized bite on her earlier this week and it was gone 2 days later as well...hers never really got 'hard' was just 'poofy' and a little ouchy, and itchy...she liked when I tickled it, and would get that "ahh that's the spot!" lip, but if I put much real pressure on it, she would flick her tail and move her hip away. It was on her barrel, behind her last ribs. I swear the small bugs are worse that the big bugs around here!!!