Human: My doctor says that I have a uterine polyp, and I'd like to find out more about them. Assistant: 
Uterine polyps are non-cancerous growths in the uterus. They can be caused by hormonal changes during pregnancy or menopause. Polyps can cause bleeding or pain during periods, but they usually don't cause any other symptoms. If you're having these symptoms, it's important to see your doctor so they can check for polyps.