3. Unexplained changes in bowel habits
This is a tricky one, because bowel movements can vary widely in a single healthy person depending on a lot of factors, including diet, stress, and whether or not they are experiencing minor illness or allergies. And to be honest, most of us don’t really like thinking about our bowel movements once we exit the bathroom.
It’s most important to notice if you are experiencing a persistent change in what’s normal for you. A bout of diarrhea after eating spicy food is no big deal (at least, once it’s over) but if it goes on for days no matter what you eat, that’s a warning sign.
Likewise, if you notice bloody, black, tarry, or pale stools, get checked out right away. You may have an infection, irritable bowel syndrome, or cancer.