Twice. I am very lucky. The two times were a horse that I purchased, road her in an arena, but not outside. Learned a really valuable lesson the hard way. When I got her home and out in the field, got on her and she went nuts, got back on her adn she went nuts again. Twice was two times too many. She went back and I got my first draft horse.
Lesson to everyone, when you are looking at a new horse, ride the horse in an arena and outside before you purchase.
Once when I was a child when an inexperienced cousin kicked a horse in the ribs and I slid off the back end of the horse on to my back end.
Then ten years ago at a stable I was riding with my daughter on my lap and the horse got scared, took off fast, and I couldn't control her with DD on my lap - off we go.
I have two surgical pins and wire holding my shoulder together now - no more riding for me - ever.
Once. We had a Shetland Pony, so the fall wasn't that far, but that didn't stop it from hurting. She as rather lazy and my sister and I would push her to do things she didn't want to do. I had her in a good trot (as fast as she would go) and was going to get her to jump a ditch. She didn't, but I did.
Only like 3?? One time my horse went under a low, knocked over tree & slid me off his butt. Too funny!!!! Good thing I was young. Really he loved me to death I don't think he did it on purpose. He was nudging me on the ground after he did it like "sorry momma!!" lol
Well since I've broke some pretty wild horses, I have fallen off a several times. They aren't bad falls more like getting off before it becomes bad, lol.