Will FUE leave noticeable scars when removing grafts from hairline & pushing it back? (Photo)

FUE leaves little round scars.  If you want to harvest donor hair from your hairline, you need to keep this scarring in mind.  Everyone heals differently.

You may want to ask your surgeon to do a trial and approximately 5 grafts and see how it appears. It will very probably be quite acceptable, and a major improvement.

You've been through a lot so you're well versed in potential complications and the need for even more surgery. That is option is certainly available, but perhaps a second opinion will be useful. Whenever you cut your into skin, unsightly scarring is possible. Best of luck to you. 

Although theoretically FUE wounds heal with scars, these scars are very difficult to detect and are usually well tolerated. In your situation, if the hairline design isn't too low and the angles of these transplanted hairs aren't too wrong, then a practical decision could be made by just filling in from the existing line to cover up this area. The goal would be to avoid FUE scars at the hairline, avoid the graft wastage that may occur while removing these grafts and reduce surgical sessions to get the quickest improvement.

Unfortunately, you story about bad hair transplant work is becoming more common. The approach suggested may leave more scarring. You should be seen in person by a well qualified full-time hair transplant surgeon who only performs hair restoration and has an impeccable reputation. The adequacy of your donor material and availability will help dictate the artistic plan for repair.

FUE does leave small scars in the donor area. Your hairline appears high and should be lowered. If you had a failed hair transplant, your surgeon should make it right.  I don't understand how you can have a depleted donor area with just 1500 FUE grafts