Egg quality refers to an egg's genetic and biological capacity to fertilise normally and develop into a healthy embryo. It declines with age, mainly because of a rise in chromosomally abnormal (aneuploid) eggs, which is a key reason both natural conception rates and IVF success fall as women get older, and why miscarriage risk rises. Egg quality cannot be directly measured before egg retrieval. AMH and antral follicle count estimate how many eggs remain (quantity), not how well they will function; age remains the most reliable overall indicator of likely egg quality. After IVF, fertilisation rate, embryo development and, where done, PGT-A results give more direct information about the eggs retrieved in that cycle.
Also known as: bad eggs, poor egg quality, weak eggs
Related India guides
Sources
- Indian Council of Medical Research (icmr.gov.in)
- Federation of Obstetric and Gynaecological Societies of India (fogsi.org)
Last reviewed: 9 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.