Why do doctors recommended using minoxidil (5%) for 6 months for newly transplanted hair?

Not all doctors recommend topical minoxidil after hair transplant surgery.  If your doctor recommends it, then you should follow your doctor's advice.  If you do use it, and you get great results you need to continue using it to maintain the results.

Minoxidil after hair transplants is used by some surgeons. Over 35 years of doing grafting I have seen no proof that there is a benefit and can cause hair loss in the raining hair when stopped.