17 for me. Broke my collarbone playing touch football.
Some age between 7 and 11? Broke an ankle ice skating.
Mid-teens-ish: broken finger (jammed on a mis-caught basketball).
College: broken toe (slammed the butt of a pool cue down on what was intended to be the floor, in disgust at having sunk the 8-ball)
Then two broken foot bones in a 5-year period around age 50, both times through stepping wrong on an uneven surface.
Had a bunch of miscellaneous minor injuries between 20 and 50, but no other broken bones that I know of.
Unofficial: 23, playing basketball at a gym, running into the back wall palm-first and off balance, and probably getting a non-displaced olecranon (elbow) fracture. The X-ray was inconclusive, but they didn’t do an MRI or wait for the swelling to go down for another X-ray because the treatment (splint for several weeks) would have been the same if it was broken or not.
Official: sometime before 49.5 or so, since they found a healed rib fracture in a chest X-ray. No clue when it happened.
When I was 13 I fell down the stairs in my house and landed on the concrete basement floor. My left wrist hurt like hell, but I was the only one in the house so no one heard my screams. Finally I got up, went up the stairs and outside, where my Mom was outside across the street talking to one of the neighbors. I told her what happened and the neighbor drove up to the hospital. It turned out I had what they called a greenstick fracture in one of my wrist bones. I had to have it in a cast for three weeks.
In 71 years that’s the closest I’ve had to a broken bone. Now, of course, I’m constantly being asked if I’ve had any falls, or if I’m at any risk of falling in my house.
10 years old. Broken jaw. Bunch of broken teeth too if they count.
Run over by a car, age 20, crossing a road at about 06:30.
Broken left tibia and fibular. Dislocated left collar bone. Fractured left shoulderblade. Minor skull fractures.
Alcohol and illegal stimulent drugs were involved, although to be fair to me I am reasonably good at checking for cars when I cross the road.
The problem was when I saw the car, after I was around halfway across the road, I took several steps backward, to allow the oncoming car to pass. The driver instead tried to miss me by going around behind me, on the wrong side of the road. We unfortunately met there.
She did not stick around. Apparently a nurse on her way home after a shift, so she was probably exhausted. She stopped, and waited for the ambulance, but left soon after. We never got her license plate, but judging from the amount of glass in my left arm and scalp, her windscreen definitely broke. I still have around 3 tiny sharp pieces in my scalp that periodically emerge until I scratch at them until they go back in.
This was 27 years ago.