Endometrial polyps are growths that arise from the inner walls that lined the uterine cavity. It is sometimes called uterine polyps. It is believed to arise from the overgrowth of endometrial tissue. It may range in size from a few millimetres only to a few centimetres. Sometimes, there can be several polyps present at the same time. It may have a long stalk and can extends through the cervix into the vagina.
An endometrial polyp is usually a non-cancerous growth. However, in a small proportion of women, some of these polyps can lead to cancer (called pre-cancerous type). The risk of cancer in a polyp is increased in post-menopausal women. It can arise at any age but rarely occur in women under 20 years old.