4 weeks post op FUE, transplanted hair not shedding or growing. Is this normal?

You're in that middle period -- where at 2-3 weeks you start to see shedding but you are a little too early to start seeing real growth which starts at 2-3 months.  Not all hairs will shed at the same time and not all hair will start growing at the exact same time.  Hair growth occurs in a cycle. Give it more time.

Great question.It is normal not shedding at 4 weeks PO but in my opinion, it is NOT normal NO hair growing after 4 weeks. I will suggest you to contact your hair surgeon for evaluation and discussion. Good luck.