Published online by Cambridge University Press: 05 March 2021
In vitro fertilization (IVF) is a complex series of techniques used to help with fertility or prevent genetic problems and assist with the conception. During IVF, oocytes are collected from ovaries and fertilized by spermatozoa in a laboratory. The fertilization can be done using the patient’s oocytes and the partner’s sperm or donor oocytes and partner’s/donor sperm. All gametes (spermatozoa and oocytes) should be correctly prepared and selected before the initiation of the fertilization process.