One of my twins (14mo) has the balance of a drunk stiltwalker and falls down about five times a minute. He falls pretty well now, rarely on his head any more, so that's something. It's very very rare that he will cry if he falls, so doesn't seem to be hurting himself.
However, the bruises on his legs are horrendous. So many of them and one really bad one on the last inside of his knee that looks really painful! He mostly seems to get them when he's cruising round the edge of the playpen and falls on to toys etc. But is it normal for a toddler to get bad bruising from this really?
BTW I am 100% sure no one is causing these bruises - the only person he's ever alone with is me, unless I'm in the toilet, and I wouldn't lay a finger on them ever. I'm more worried it could be a medical issue? His brother is much more stable, hardly ever falls down and has zero bruises.