In order for the normal implantation process to take place, the uterine environment must be safe to the developing embryo. The uterine environment may be disturbed by various entities which may compromise the implantation process. The growth of polyps or intracavitary myomas may lead to gross distortion of the uterine lining, which can prevent implantation. The presence of intrauterine adhesions (scarring), from a prior surgical procedure or infection or extended use of an intrauterine device (IUD), may also prevent implantation or lead to miscarriages. Therefore, a thorough evaluation of the uterus is an imperative part of the infertility work-up. Simple tests such as a hysterosalpingogram (HSG), or sonohysterogram (SHG), or hysteroscopy can be performed to confirm normalcy of the uterus.