Abstract: 【Abstract】It is important for assisted reproductive techniques(ART)to choose oocytes which develop their nucleus and cytoplasm synchronously. Mitochondria are cellular organelles that are required for energy production. Emerging evidence demonstrates their role on oocyte development and reproduction. Mitochondria could be used for measuring the quality of oocyte cytoplasm. In this review,we discuss the indicators of mitochondria ,analyze the affect of ART on mitochondria function as well as the ways to protect oocyte mitochondria.

Key words: Assisted reproductive techniques, Mitochondria, Oocytes