For everyone even for male just an information:-

For scarp shampoo:- you may use your hand to scrub your head

For normal shampoo:- avoid scrub your head, just hair

If want to avoid hair fall try not too strong to wash it, gentle and use warm water.

Try use hair comb and do it slowly, drink more water between 3-5pm.

if may happen if too stress or sleep less, try listen some relax music at night.

Hope it help you!