Is this shock loss in the donor area? 3 weeks post FUE with PRP. (photos)

FUE can cause donor depletion and patchy donor appearance.  Sometimes aggressive FUE harvesting can cause shock loss.

Sometimes  there may be such a early phase alopecic, bald spots  in donor areas after FUE surgery,  but fortunatelly most are transient. İt may happen because of over harvesting or transient post traumatic shedding /shock loss. Any way it heals and hair regrow in 4-5 months of hair restoration surgery .

Your surgeon probably over harvested the donor area. Unfortunately This could happen if the doctor is not careful during fue hair transplant. 

This appears to be shock loss causing loss of the hairs in the donor area. I am assuming that the surgeon took out too many grafts too closely in that area which impacted the circulation to the donor area. We have performed a thousands of FUE sessions and have never seen this complication. You should wait it out and possibly in 4-7 months the some of the hair will return