Can I do microneedling on my crown after an FUE hair transplant?

It is best to contact your surgeon for post surgery issues and care since all doctors have slightly different instructions.Microneedling after surgery may cause infection if your scalp has not healed. 

henryburger,It should be fine to microneedle  the crown area, since the hair transplant was done in the front area. Besides, micro needling is very superficial procedure. Are you also having PRP?

This is a good question and the answer is based upon the medical literature. Currently there is no research indicating a positive response from micro needling versus subcutaneous injection of PRP into scalp. Obviously the time frame of PRP injections is important because you don't want to be injecting autogolous cells into the scalp immediately after surgery.  That would potentially decrease graft survival. One study published by Carlos Ubell in 2006 suggested  greater graft survival after hair surgery when grafts are bathed in PRP.  A comprehensive review by the ISHRS PRP committee revealed,  PRP  is not only is safe and tolerable, but the efficacy is also recognized. 

You should not consider microneedling until everything has fully healed. I would wait a minimal time of 3 months before considering it