This next step, deciding where each FU should be placed, is one of the most delicate processes during the surgery. Relevant factors include where each FU should be transplanted, the percentage of each to be utilized in each area, which area to prioritize, the best angle of the hairs in each area, etc. These are only some of the innumerous details that should be respected to optimize each session, which depends on the surgeon’s experience, the probable evolution of hair loss, and the number of FUs obtained.