it is reffered to as a cramp or a stitch in the side. When you over exert your body to physical activity, like running- or even fast dancing. That is what causes a stitch in your side. Try to avoid...
You did not indicate the gender of the person with the pain. A woman could have a cyst on her ovary. The pain could come from the intestines. Now that opens up a can of worms. You would not believe...