Another Way to Look at Donor Harvesting Effects with FUE

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Figure 1. In planning to remove an FU, it is important to note that each FU is usually surrounded by another adjacent 6-7 FUs. Extraction of more than about 1 out of 7 of the FUs makes it difficult to avoid taking adjacent FUs in large sessions. Also note inter-follicular distances.
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Figure 2. Removal of two adjacent FUs (compare to Figure 1) creates an area of hairless skin that can often be 6mm2 or more. Such areas would likely be easily visible if the patient shaves his head. This measurement assumes an inter-follicular distance of approximately 1mm.