The causes of infertility can be grouped into general categories of: ovulatory abnormalities (polycystic ovary syndrom, hormonal imbalances, perimenopause…), anatomical factors (blocked fallopian tubes, pelvic adhesions, uterine or cervical abnormalities) or male factor. Approximately 10% of couples have “unexplained infertility”. This term is used for couples who have normal evaluations but are infertile. Most causes of infertility can be overcome.