Everyone has body odor of some sort. Try as you might to get rid of it, between your sweat and oil glands, you likely have a scent, subtle though it may be. Chances are, you don't even regularly notice it, because you're more than used to the way your body smells after being so up close and personal with it day in and day out, but if your body odor changes (or if you forgo a shower one too many times), you might notice it more. There are some things your body is trying to tell you when you have body odor, however, that might be worth paying attention to.
Your body odor, like so many other things about your body, can send you subtle (or sometimes obvious) hints and clues about what might be going on within. In some cases, you might already know that you have a particular condition or are experiencing a particular issue, but didn't know that it could have an effect on the way that you smell (or that it would be so pronounced). But in other cases, knowing what a particular scent might mean can also give you some clarity about what might be going on with you. Your body odor might be more revealing than you thought, you just need to know what sorts of things it might be telling you.