Shock loss uncommon over 40 y/o

“men over 40 often don’t need finasteride with a hair transplant” That is interesting. I had not heard that before. What is the reason for this? 

Most men at 40, have lost their miniaturized hairs and are not actively losing hair, so shock loss is unusual in men over 40 unless they are actively losing hair later in life.  Ask your surgeon to check out how much of your remaining hair is miniaturized to see if what I said is true in your case.