Concerned with large scars after FUE transplant 36 days post-op. Any ideas why this is happening? (Photo)

It is difficult to make a diagnosis based on a photo only and without knowing the number of grafts harvested but it appears as if that area was overharvested.Alopecia areata and early keloid are other possibilities but unlikely.I would recommend having an evaluation by your surgeon and consider applying Minoxidil (Rogaine) to the affected area.

FUE leaving no scar It is a misconception on the Internet.  FUE can leave massive depleted donor scar. It is best to follow your doctor if you are having issues after surgery.  

It is best to return to your surgeon to have them evaluate and examine the area.  However, it appears you have developed areas of focal alopecia from your FUE procedure.  Visit with your surgeon but in the meantime you can try minoxidil to the area and massaging of the area twice a day.  

I would talk to your doctor. This could be shock loss, which would recover on its own within a few more months. Could also be overharvesting, which will not recover on its own but you could mitigate with scalp micropigmentation or other methods. It could also be something else entirely, its hard to make an accurate guess over the internet.

healing on the donor area takes sometimes more time (body support,the size of punches,the type of punch (sharp or not ) for extraxt the hair follicules,and of course the experience.

Dont worry it will looks much better after 2-3 month period.İts early to say if its over harvesting or not!Update your pictures.