Is dangerous to wash your hair then bleach it the same day?

I've often heard that you have to wait at least 24 hours after shampooing your hair before you bleach it. But what would happen if you washed it in the morning then bleached it at night?Is dangerous to wash your hair then bleach it the same day?
i'm not sure, but if i were you (if you want to bleach your hair) i'd just wait the full 24 hours to be sure. actually, i'd strongly recommend going to a professional hair stylist to do this because you could make a mistake and that'd be bad lolIs dangerous to wash your hair then bleach it the same day?
it depends on how healthy your hair is Report Abuse