I have developed some sort of bump right under the skin on the top of my left wrist. It's about 1/4 inch across and located almost dead center between the two main bones and about one inch up the wrist from where my palm starts. If I wore a watch (which I don't) the face would be right over it. I don't know how long it's been there but my wife actually noticed it before I did, a couple of weeks ago. You can see it through the skin but it does not hurt when bumped or pressed, nor does it seem to be affecting the motion of my wrist at all. I showed it to my dad (a retired doctor), and he suspects it is a bone spur since it does not move with the surrounding muscles and tendons. I'm wondering about that since I thought bone spurs usually hurt and this does not. He didn't seem real concerned about it and thinks I should just let it go unless it starts hurting or changing shape or size. FWIW I am 42, male, in good health. I have been playing almost 28 years (on and off), and currently average 20-30 hours of playing a month (gigs and rehearsals), although I am coming off a recent stretch of several weeks where I was playing about 3 hours almost every night in a pit orchestra. I play with fairly conventional left hand technique and wear my P-Bass at such a height that my belt buckle hits almost right in the middle of the body. I usually play standing except for the recent orchestra gig I mentioned above. Has anyone else developed something like this? Should I get this thing checked out? I want to be pro active about this but the last thing I want is anyone messing with my wrist unless it is absolutely necessary. Thanks in advance.