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Is it possible to menstruate without ovulation?

By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 03/02/2026

Silvia Azaña, embryologist at inviTRA, explains in this video if it is possible to menstruate without ovulation:

Women with anovulatory cycles, meaning no ovulation, can still have their period. Nevertheless, these women tend to exhibit menstrual imbalances with considerable frequency; take for example women diagnosed with polycystic ovary syndrome. They can experience anovulation and still menstruate even though their cycles are irregular.

 Zaira Salvador
Zaira Salvador
B.Sc., M.Sc.
Embryologist
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)
License: 3185-CV
Embryologist. Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI) License: 3185-CV.