Intracytoplasmic Sperm Injection (ICSI) is an advanced form of In Vitro Fertilization (IVF) used primarily to treat male infertility. In this procedure, a single healthy sperm is directly injected into the cytoplasm of a mature egg using a fine needle under a microscope. This significantly increases the chances of fertilization, especially when sperm count, motility, or morphology is poor, or in cases of previously failed fertilization with standard IVF.
ICSI has revolutionized fertility treatments by offering couples with severe male factor infertility a real chance at achieving pregnancy.