Why can’t someone tell me my balding pattern?

I don’t understand and I’m getting frustrated because it should be easier to see. So if you’re a Norwood 5 or 6 that means you’re already a high NW number and the hair transplant doctor says “I can’t predict what pattern if you’ll go to a NW 7” how is that hard!?!? When you have a patient that is already a NW 5 or 6! I would understand if the patient was a NW 2, 3, 4 but this doesn’t make sense.

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