Researchers say injections of Botox may help people with urge incontinence, a condition in which the bladder contracts and squeezes out urine involuntarily. Botox injections reduce muscle contractions that cause the sudden, undeniable need to urinate felt in urge incontinence. In a Swiss study presented at the joint meeting of the American Urogynecologic Society and the Society of Gynecologic Surgeons, researchers show that Botox was effective in reducing uncontrolled urination.