To avoid an over-harvested donor area with FUE, here is how to do it (photo and chart)

You must get your surgeon to measure your donor density  (https://newhair.com/resources/#tab-id-4) and with that number, you will know, using the chart here:   how to calculate your limit for FUE.  The photo below is what you want to avoid by protecting yourself as I described in the link I supplied.