what do we need to know. number one, hats can cause baldness. is it true or false? i say true. not enough hair. i ve heard it a million times. it s not true. is it a fact? it s fiction. hats cannot cause baldness. there s something called traction alopecia. steve, you were pointing out if you wearing a dirty hat, you can get the hair infected and it will fall out. that s true. if you are going to wear a hat, put it in the washer every once and a while. overshampooing or brushing can cause you to lose your hair? brushing, yes, maybe, it pulls it out. i don t know. i will say fiction. true. it s fiction.