An endometrial polyp is a mass that grows in the uterus, in the endometrium, the inner lining of the uterus. The size and shape vary from patient to patient, and it has a slow growth, but sometimes it can occupy the entire endometrial cavity. Endometrial polyps are painless and usually do not cause problems. Women who have already gone through menopause are the ones more likely to develop these polyps. Some symptoms include: vaginal bleeding during or after menopause, heavy menstrual bleeding or longer than usual, cramps during or between periods, etc. A hysteroscopy is carried out to remove the endometrial polyps.