Last year I cut my hair quite short, shorter than I've EVER had it, for cancer, but I think next year I'm going to shave it all off, if it's long enough by then. If you want to, I say why not? But I would do it for cancer. There are requirements though, I don't think it can be dyed and it has to be a certain length, depending on which organization you send it to. I think mine went to "Wigs for Kids".