In cases where there are problems of egg formation and release, and simpler medicines by mouth do not work, you may require hormone injections. There are many schedules of these hormones – long, short and ultrashort depending upon the duration of injection treatment. They are used to suppress the natural abnormal hormones which cause no or haphazard, incomplete egg release, so that a new, controlled cycle of egg formation is stimulated. Egg formation thus occurs in a predictable fashion; the number of eggs formed is controlled by the dose of injectible hormones given. When about 1-2 eggs are formed, one can do artificial insemination (IUI). When more eggs are stimulated, eggs can be picked up for fertilization in a dish with the sperms (IVF). Once the eggs are fertilized 1-2 of these are placed inside the womb where they grow into a baby or twin babies. Once these hormones are used, then usually the egg is not released by itself and requires another hormone injection. In this way, problems of egg release, blocks in the tubes or problems in the husband’s semen are overcome. These methods of hormone treatments of infertility work well even in those cases where no reason for the infertility can be identified. These are known as ‘Unexplained Infertility’. Natural intercourse, where both you and your husband are healthy and normal, and when you meet during your fertile period (generally day 8 to day 18 of a 28 day cycle) results in a pregnancy in 60% of the cases. Assisted Reproductive Technologies, like those described, including IUI and IVF, have success rates of 30-40% in achieving a pregnancy. For a couple in despair because they are unable to conceive naturally each success is the world for them and a matter of great joy.