By Lisa Rapaport (Reuters Health) – Weight-loss surgery may help reduce urinary incontinence in extremely obese people, a study suggests. Researchers followed nearly 2,500 obese men and women who had so-called bariatric surgery, which alters the stomach or intestines to induce weight loss.  Before the surgery, nearly half the women and about a fifth of the men had experienced urinary incontinence. A year later, the rate of incontinence was down to about 18 percent in women and 10 percent in men.