I've had a coupld of horse related injuries. My first one was my own fault completely. I was riding my very first horse - I bought him at an auction (stupid, I know). I knew nothing about horses, but something about him caught my fancy, and I felt sorry for him because no one was bidding. I bought him for $125. He was two years old and green broke. A bigger sweetie there never was. Only problem with him - he was a major dead head. That was fine with me - I'm no speed demon - especially since I really didn't know how to ride, anyway.
DH decided I needed to ride him with spurs, just to get him to be a little more responsive. Oh brother. We were riding out of the driveway when my horse, Snoopy, shied a little from a truck pulling an empty flatbed trailer down the road in front of us. When Snoopy jumped, I instinctively tightened my legs, and accidentally gigged him with the spurs (blunts, honestly). Snoopy jumped forward, then backward away from the trailer. I honestly did not fall off. I did come out of the saddle and land tailbone first on the saddle horn, then tipped forward onto his neck. Fortunately, his big spook (really wasn't that big, and he was NOT normally spooky) was over, and DH grabbed my shoulder and helped haul be backward into the saddle.
We continued our ride unfazed - Snoopy was his normal happy self - more responsive when asked to move out due to the spurs and the ride was really enjoyable...for about half an hour. By then I realized that something was seriously wrong. A trip to the doctor the next day confirmed a broken tail bone. Not fun - especially when my baby daughter was burned two days after that and spent a month in the hospital. She wouldn't settle down unless I was holding her, and sitting in those plastic hospital rocking chairs was AGONY!
My second injury is the one I am currently famous for - since it happened in front of about 20 other riders. I took Dancer on her first ever trail ride back in June. She got tired, being out of shape and carrying my immensely fat backside up and down the ravines. I decided that I would dismount and let her rest for a while - the other riders could complete the loop they were on and we'd meet back up when they came back around. Note to self: do NOT dismount a horse on a slope. I slid out of the saddle, and twisted my right knee a bit. Not serious, but it hurt.
When the group circled back around, I decided to remount Dancer and ride the rest of the way back out. She's 15HH, and I'm only 5'1", so I can't mount her without a really tall mounting block. My fat body is so out of shape, I can't even use a standard mounting block. I decided to run Dancer down into a ravine and use the bank as a mounting block. Dancer shifted just a tad as I was getting on - not normally a problem. However, just about that time the bank gave way, and I fell right up underneath her. I broke my left foot, and REALLY sprained my right knee. And felt like an idiot.
I am only just now able to walk without pain. I even gained 15 of the 40 pounds I lost back because I couldn't get around very well. Now it's back on the program to lose 150 pounds - for which Dancer will be eternally grateful, I'm sure!