spinoff- DS hitting head

This is going to sound really stupid, excuse me in advance but I have to ask. DS is 9 months old, and falls over every couple of days when sitting up and really bonks his head. Now that he started standing up, Im so scared that he is going to fall ( he already did once and has a bruise on his forhead) Is this normal? I feel like he is toppling over I don't want to have him permanently damaged!!!

Re: spinoff- DS hitting head

Totally normal. I would just do your best to keep him away from sharp corners/edges or hard furniture. That's all you can really do! Good luck!!