Toddler ALWAYS has bruises all over shins

He’s 18 months old. And it seems like he always has bruises on his shins! It’s like as soon as one goes away, he has another.

Should I be concerned? He has occasional bruises on his back/thighs but nothing like this lol. It’s one here & there occasionally.

He climbs constantly & falls like a normal toddler but I’m just wanting to see if everyone else’s toddlers shins looks like this?

Should I call his pedi? Or is this normal?