Kegel exercisers help improve the muscles in the pelvic area, including the uterus, bladder, vagina, small intestine, and rectum. Why do you need to do that? There are a number of reasons. Kegel exercises can help with incontinence, and can generally improve the strength of the muscles. Think about what strengthening your vagina or anus can do for sexual activities!Kegel exercises generally involve inserting something into the vagina or rectum and tightening the muscles to hod it in. Of course, aside from the health benefits, Kegel exercisers like ben wa balls are just fun to use!