Shock Loss Risks — FUE vs Strip Harvesting

I heard of the possibility of shock and its harm to cause loss of existing hair from hair transplantaion. How frequentlly does this happen and is the risk lower with follicular unit extracton?

Shock loss occurs in the recipient area, so the method of extracting the donor hair is not impacted. The best way to reduce the risks for shock loss is the use of Propecia (finasteride 1mg) to be taken orally prior to the surgery and for the subsequent 6-8 months.