Post Op concern: hitting my head

[delcolorado]

I'm 6 days post op and I accidentally bumped the top of my head on the metal rail while climbing into the shower. To make matters worse, the same day I accidentally bumped my head while climbing into my car. I've looked at my head and all I see is a small read spot where I hit the shower rail. Do you think that this could cause problems to the grafted area? Should I be very concerned about this? Thanks.