Infertility is failure to achieve pregnancy within 12 months of trying. Those who have never been pregnant have primary infertility. Those couples who once were pregnant and now fail to get pregnant are said to have secondary infertility. One in six couples will seek help for infertility. Fortunately recent advances are able to help a large number of women.

A common cause is polycystic ovarian disease which occurs in six percent of women. It is characterized by irregular cycles, excessive hair growth, overweight and associated with insulin dysfunction (insulin resistance]. Some women have a small quantity of eggs which get used up earlier. This leads to failure of ovulation. These conditions can be due to genetics or destruction of ovarian tissue due to surgery or chemotherapy. Women who fail to have menstrual cycles are unlikely to have ovulation. They need expert evaluation. Women treated by depo provera may ovulate after nine to 12 months.

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