I know you have stated which common blood tests you think females should have to rule out hormonal imbalances and malnutrition as a cause of their hair loss, but how would the list be different for males to rule out things like hormonal imbalances/malnutrition/etc. to help determine if they have MPB or not? Thanks.
It is easier to rule out non-genetic hair loss causes in men than it is in women. The existence of patterned balding is an almost absolute rule for genetic hair loss.