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Menstrual Cycle: What's Normal, What's Not - Mayo Clinic
Menstrual cycle - Find out how to identify problems with your menstrual cycle.
http://www.mayoclinic.org/healthy-lifestyle/womens-health/in-depth/menstrual-cycle/art-20047186
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Menstruation - MedlinePlus
Menstruation, or period, is normal vaginal bleeding that occurs as part of a woman's monthly cycle. Every month, your body prepares for pregnancy. If no pregnancy occurs, the uterus, or womb, sheds its lining. The menstrual blood is partly blood and partly tissue from inside the uterus. It passes out of the body through the vagina.
https://www.nlm.nih.gov/medlineplus/menstruation.html
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Menstruation and the Menstrual Cycle Fact Sheet - Womenshealthgov
When periods (menstruations) come regularly, this is called the menstrual cycle. Having regular menstrual cycles is a sign that important parts of your body are working normally. The menstrual cycle provides important body chemicals, called hormones, to keep you healthy.
http://www.womenshealth.gov/publications/our-publications/fact-sheet/menstruation.html
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All About Menstruation - TeensHealth
Periods can be confusing. Get the facts in this article for teens.
http://kidshealth.org/en/teens/menstruation.html
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Menstruation - Planned Parenthood
Also known as "having your period" Menstruation is a normal, healthy part of a woman's life Some women experience discomfort before or during menstruation Your health care provider can help you manage period-related symptoms.
https://www.plannedparenthood.org/learn/womens-health/menstruation
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Menstruation: Explore Our Information Pages on Menstruation, Fertility, Getting Pregnant, Puberty, Menopause and Much More
Supporting women's menstrual health through practical information and healthy products. Menstruation, fertility, alternative menstrual products, puberty, menopause, conception and more.
http://www.menstruation.com.au
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Normal Menstrual Cycle-Topic Overview - WebMD
What is a menstrual cycle?The menstrual cycle is the series of changes a woman's body goes through to prepare for a possible pregnancy. About once a month, the uterus grows a new, thickened lining (endometrium) so that it is ready to receive a fertilized egg. When there is no fertilized egg to start a pregnancy, the uterus then sheds its lining.
http://www.webmd.com/women/tc/normal-menstrual-cycle-topic-overview
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Menstruation: Learn All About the Cycle - Medicine Net
Learn about menstruation (menstrual cycle) of a woman. The approximate age a female begins menstruation, and conditions that may warn of irregular vaginal bleeding.
http://www.medicinenet.com/menstruation/article.htm
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Menstruation: A Journey Through Your Cycle - American Pregnancy
Menstruation is the discharge of blood and tissue from the lining of your uterus that occurs at the beginning of your menstrual cycle. Each woman's menstruation cycle varies, but the process is always the same.
http://americanpregnancy.org/womens-health/menstruation/
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Menstruation - Wikipedia, the Free Encyclopedia
Wikipedia's information about menstruation.
https://en.wikipedia.org/wiki/Menstruation
