I had one on my wrist as a teenager… I think I got it from a tennis injury or maybe the incompetent chiropracter who treated me for it. I then went to a real doctor, then a surgeon, and decided I’d rather not have the scars of open hand surgery, when the pain was bearable and these things can resolve themselves.
But when the surgeon mentioned Bible therapy, I decided to try it. I also used a large dictionary, along with a large leather-bound Bible, for good measure. I don’t know if it helped, but the lump did disappear in the next week or so. (The pain in my wrist, unrelated to the ganglion I imagine, lasted much longer). I have never broken a bone or had a cavity, so I didn’t worry at all about hitting my wrist. After all, people bump themselves accidentally all the time without major damage, and. Unless you have weak bones, I can’t see why you’d be hurt by a little Bible bashing.