For me I have lived with many scrapes and booboos all my life. I have a scar on my knees for when I feel off the bike while trying to ramp off a contraption my brother built. I have a scar by my eye when my neighbor threw a stone at my face and I have one from diving off the side of a boat and hitting my back on a rock.
These were not considered major injuries and neither have I found myself experiencing anything traumatic or scaring to talk about. However when I had my son I did pop a blood vessel in my leg during the pregnancy and lost natural movement in my leg for a few months. Then when I had my daughter I had to undergo emergency surgery to remove the placenta because it had fused to the lining in my stomach and refused to come down.
These are what I consider serious and life changing events. Both times I had difficulty giving birth... but worth it in the end.