You can do more or less anything competitively these days
. There are competitions for things that maybe half a century ago would have been unimaginable in a competitive context, and as time goes on the field increases in size.
But it should come as no surprise that among the things you can do competitively in body building. It is something that has clearly definable and measurable results. And it fits in well with a competitive spirit, as it is something towards which you can train and put in a whole lot of effort.
If you are a relative novice to body building, there are competitions for the newcomer which are probably the best choice if you are feeling competitive. The guys who have been competing for years are liable to make anyone feel somewhat daunted and even a little bit discouraged. The one thing that must sit as a caveat for any potential competitor is that it is not a pursuit for a shrinking violet. In order to demonstrate the success of your body building regime it is necessary to pull some poses that would make the average person blush. But if you have been working on your physique and got it to a level that you're happy with, why would you not show it off?
Most areas have regional competitions, and if you do well enough there there are many levels above that to which you can graduate. Perhaps someone reading this might go on to be another Mr Universe!