Menstrual lining: When you have a period you are shedding your menstrual lining - the endometrium -- not the egg. The egg is only 1 microscopic cell. The material and blood that is expelled during the menstrual cycle all comes from the lining of the uterus.
Answered 3/22/2019
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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