The horse I ride has these small, very hard, bumps on his back. There is about 4 of them, the biggest one is the size of a pea. They are only on one side of his back..it kind of feels like rain rot, but there are no scabs. They are right where the panel of my saddle sit. They have been there for a few months, they haven't changed in size or firmest. And he doesn't react if I press on them, or brush them. I'm going to guess that they aren't painful.
Another girl rode him this weekend and noticed them, and said they were from an ill fitting saddle. Obviously it would be from my saddle because I'm the only one that rides him.
I'm not sure if they are truly from my saddle though, or if they are saddle sores. I've been riding him for 8 months, with the same saddle and they just appeared about 2 months ago. And he hasn't changed his temperament under saddle. He doesn't seem like he's in pain at all.
I was just wondering if they could be saddle sores, and what I should do to make him more comfortable with my saddle. (I cannot afford a new one).
Or could it be something else?
(I could try and get pictures tonight, for better clarification).