Bruise easily??

So I think I bruise way easier than normal. For example, the other day I was cleaning the bathroom mirrors at work and I had to get up on the sink to do it. When I got up there, a part of my leg was on the sink and the other part was hanging off. I put a little weight on my leg and it started to hurt. The next day there was a moderately sized bruise that shouldn’t be that big from what happened. There has been other cases where I bruise easily and I don’t know why. I’ll also find random bruises everywhere and I don’t know where they came from. Why do I bruise easily? Does anyone else experience this?