TweetYes, they are common. They usually are embedded in a tendon. Wrists are common site as well as ankles. They are usually not a problem except to cause pain from increased use. Often surgical excision is the only route to go. They were once called "bible" cysts cuz people would smash them with the big schofield family reference bible..LOL...that can actually work and it may be worth a shot. Good luck. Oh, btw, I had one on my ankle and had it removed and it was a total waste of time. I should have just left the som*****