The cause of the infertility may be problems of the fallopian tube. However, it may also be caused by male infertility that result from defective sperm quality.
Sometimes, a different procedure called intracytoplasmic sperm injection (ICSI) is used in these cases. ICSI is the injection of the sperm cell directly into the egg cell. This is generally used when sperm are having difficulty penetrating the egg.
The father’s sperm or that of a donor may be used. If the father’s sperm numbers are very low, ICSI is often the procedure of choice. Actually, the success rates are almost as good forthis procedure as for IVF fertilization.
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