Washing one's hair

грїзная головђ dirty hair
чќстая головђ clean hair
мІть/вІмыть гћловуa to wash one's hair
NB The expression мІть гћлову, above, is much more common than мІть вћлосы "to wash one's hair," which is perceived as slightly substandard or formal (as used in the instructions on some shampoo labels, for example).
У менї головђ грїзная, нђдо её вІмыть. My hair is dirty, I have to wash it.