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The success rate of IUI depends upon several factors.
Men with normal sperm counts who are unable to have intercourse have a much higher chance of success than patients who are undergoing IUI for poor sperm counts or decreased sperm motility
In addition, female factors play an important role.The hormonal
level of the female, other associated medical conditions. If the female is more than 35, the chance of a successful pregnancy
is significantly decreased.
Generally, the chance of conceiving in one cycle is about 10-15%; and the cumulative conception rate is about 50% over 4 treatment cycles. (Remember, Nature's efficiency for producing a baby in one month is about 15 to 25 %). However, if IUI is going to work for a couple, it usually does so within 4 treatment cycles. If a pregnancy has not resulted by this time, the chances of IUI working for you are very remote.
After IUI one should explore the option of IVF .