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How many days does ovulation last?

By Sara Salgado B.Sc., M.Sc. (embryologist).
Last Update: 12/07/2021

The ovulatory phase, that is, the period when the egg is released and ready to be fertilized, lasts about 24 hours. Ovulation occurs in the middle of the menstrual cycle, on approximately day 14. Once released, the egg has a life span of only 24 hours, so that if it is not fertilized within this time it will die and be expelled through menstruation.

 Sara Salgado
Sara Salgado
B.Sc., M.Sc.
Embryologist
Degree in Biochemistry and Molecular Biology from the University of the Basque Country (UPV/EHU). Master's Degree in Human Assisted Reproduction from the Complutense University of Madrid (UCM). Certificate of University Expert in Genetic Diagnosis Techniques from the University of Valencia (UV).
Embryologist. Degree in Biochemistry and Molecular Biology from the University of the Basque Country (UPV/EHU). Master's Degree in Human Assisted Reproduction from the Complutense University of Madrid (UCM). Certificate of University Expert in Genetic Diagnosis Techniques from the University of Valencia (UV).