I have an 11yo TB gelding and I noticed a hard lump under his jaw a while ago. My first thought was that is was just an abscess as I used to work with race horses and saw it a lot with them. I tried to bring it out and make it burst quicker by bathing the lump every day in hot water to soften it. That never worked. Hence why I am writing in. So now the lump has been there for 2 months maybe 3. I don't think it worries him too much as he hasn't gone off his feed at all. He grazes in a 50 acre paddock all day and still eats the feed I give him every 1-2 days. I'm not sure if it is hurting him because he only reacts when I touch it sometimes. So I'm not sure if it hurts or if I am just annoying him. I am getting a bit worried now that it could be something pretty serious. Your reply with thoughts would be much appreciated. Thank you.