Illustration of an ovary with PCOS
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What is PCOS?

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Written by Jack Pearson

Jack Pearson

Dr. Jack Pearson is a previously HCPC registered Embryologist with a PhD in reproductive medicine. Prior to joining Natural Cycles leading Medical Affairs, he worked for more than 10 years in a clinical setting working at some of the busiest fertility clinics in the UK. Today he spends most of his time working with experts at the world’s leading institutions to carry out important research with the vision to further the field of female health. He earned his PhD from the University of Sheffield specializing in Sperm Metabolism and currently lives in London.

PCOS stands for polycystic ovary syndrome. Consider your ovaries as bunches of seeded grapes on a much smaller scale. The seed in the centre of the grape is an immature egg cell and the flesh of the grape is what we call the fluid-filled follicle. They’re like little sacs that contain the immature eggs. PCOS is when some of these sacs are unable to release an egg, which means that ovulation does not take place.

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