Round Spermatid Injection

Round spermatid injection (ROSI) is a technique of assisted in-vitro fertilization (IVF). ROSI technique involves the injection of haploid germ cells that have completed meiosis derived from testicular biopsies into the recipient oocytes. In some infertile men (i.e., those with azoospermia), round spermatids are the most mature cells visible during testicular biopsy. Currently, human ROSI is considered a very inefficient procedure and of no clinical value. Despite the limitations of ROSI and diminished clinical success rates, the use of round spermatids for fertilization is still considered useful as a treatment modality for men with azoospermia, and attempts at optimization of the technique are still ongoing.

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Religious Aspects of Male Fertility

Religion often plays a significant role in patients’ attitudes towards use of Assisted Reproductive Technology. Reproductive health specialist should be able to provide appropriate counseling

Kallman Syndrome

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Background: Over the last decade, many studies have been done on the connection between obesity (BMI>35) and male infertility. This wave of research was was

Sperm Mapping

  In some men with non-obstructive azoospermia, there is a small amount of sperm production.  However, it is difficult to find and extract it due

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