Uterine polyps and fertility

Benign growths on the uterine lining that may prevent embryo implantation or cause irregular bleeding; these growths are caused by excessive growth of endometrial tissue and can range in size from tiny nodules to larger masses that distort the uterine cavity. They may be asymptomatic in some cases, but in women with repeated failed implantations or irregular menstrual cycles, their diagnosis and potential removal is an important step in optimising fertility.