Tag Archives: menstruation facts

What does a human egg cell look like?

How big is a human egg? The human egg (or ovum or oocyte) is probably the largest single cell in the human body. Sperm cells, the other half of the reproductive equation, are much, much smaller (in fact, sperm cells are the smallest cells in … Continue reading

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Menstruation Facts

Average age of menarche (first period)? 12.43 years old in the USA. (In Europe the average age of menarche has decreased rapidly from 17 in 1850 to 13 in 1970. It has stayed relatively stable since then). Average amount of blood … Continue reading

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