Hello Dr. Rassman! I am very grateful for the information that you provide for all of us trying to find legitimate ways to mitigate hair loss and for answering my questions in the past.
It has been almost three months since my hair transplant procedure and I am looking forward to the results. I do recall however that 3 days after my procedure, a friend of mine inadvertently tapped my head back then with a folded box. There was no pain, no bleeding occured and the force of the tap itself was lightly moderate.
My question would be: Could that tap may have affected the grafts in the recepient area that the box may have touched? I’m just concerned that that particular single tap (no taps or hits with any object have occured since then) may have affected any of the grafts that the box may have touched back then. Any input would be greatly appreciated. Thank you!
As long as it was a single tap, and the box was folded, and the color of the box was brown… you should be fine. 
In all seriousness, it’s common to be overly-worried about the results of your hair transplant since at just three months you’re probably not seeing growth… but a light tap on the head is nothing to be concerned about.