What is Ixi and its role in IVF?

Ixi, referred to as ICSI (Intracytoplasmic Sperm Injection), plays a crucial role in the IVF (in vitro fertilization) process, especially when dealing with egg freezing. After the eggs are collected and the outer cells (cumulus) are removed, ICSI is necessary for fertilization. This technique involves selecting a sperm based on its appearance and motility, and then directly injecting it into the egg. This is particularly useful because it bypasses some of the limitations of traditional fertilization methods where sperm and eggs might fail to naturally fuse, thereby enhancing the chances of successful fertilization 1.

The selection of sperm for ICSI is based on visual assessment of the sperm's shape and motility, which can indicate the sperm's health and viability. However, this method does not allow visualization of internal DNA damage, which can affect the embryo development. Advances in technology for better selection and assessment of sperm based on DNA integrity are still in development 2.