Kegel exercisers are devices that help perform Kegel exercises or pelvic floor exercises. The main aim of these exercises is to strengthen the pelvic floor muscles that support the bladder, uterus, small intestine, and rectum. Kegel trainers can help both men and women who have urinary or fecal incontinence. In women, they are especially helpful in holding up the bladder and preventing vaginal and uterine prolapse. In men, these pelvic exercisers control premature ejaculation.