ICSI can assist fertilization when sperm will not bind or penetrate an egg. It can also treat men with extremely low numbers of sperm. However, ICSI is generally unsuccessful when used to treat fertilization failures that are primarily due to poor eggs. Frozen sperm collected prior to cancer treatment that may be limited in number and quality Absence of sperm secondary to blockage or abnormality of the ejaculatory ducts that allow sperm to move from the testes. Some eggs will be damaged by the ICSI process.
Some eggs have plasma membranes that are difficult to pierce.
In others, the fertilized egg may fail to divide or the embryo may stop growth. Other factors such as poor egg quality and maternal age may cause these percentages to drop. Costs of IVF Estimated non-binding fees for IVF and embryo transfer reflect current estimates. These estimates are based on an average cycle. If your cycle is longer, costs may be higher.