Gash in Head from board

So today has been quite eventful. We went out this morning and my fiance has recently learned to wakeboard and was really excited to keep progressing. I found a winner!! Anyways, she fell and when we came back to pick her up she had a huge gash in her head. And by huge i mean 2inch long gash and deep too. Just wondering if anyone has heard of people hitting their forhead/temple area on a board when falling? I havent heard of it before.