If my boyfriend has hit his head hard enough to produce a large bump should he go to hospital?

Maybe: Signs a head injury need the er: any loss of consciousness confusion / difficult to arouse vomit more than once vision, hearing or speech problems weak / numb in part of body blood or fluid from ears, fluid dripping from nose check him after 1st hour of sleep & periodically thru that night to make sure he wakes up like he normally would wake up in the middle of the night. Ice the goosegg.

Bump: Ice to the bump is important. If he has a headache, change in vision or the bump is getting bigger, he should check it out