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Causes of Menstruation

Menstruation: Related Medical Conditions

To research the causes of Menstruation, consider researching the causes of these these diseases that may be similar, or associated with Menstruation:

Menstruation: Causes and Types

Causes of Broader Categories of Menstruation: Review the causal information about the various more general categories of medical conditions:

Menstruation as a symptom:

Conditions listing Menstruation as a symptom may also be potential underlying causes of Menstruation. Our database lists the following as having Menstruation as a symptom of that condition:

What causes Menstruation?

Article excerpts about the causes of Menstruation:

Menstruation: NWHIC (Excerpt)

During the menstrual cycle, an egg is released from the ovaries. While the egg is traveling down the fallopian tubes and towards the uterus, the uterus is building up a lining that consists of extra blood and tissue. The lining of the uterus will thicken and, if pregnancy occurs, blood vessels in the lining will enlarge to nourish the growing fetus. If the egg becomes fertilized by a sperm cell, the egg will attach itself to the uterine wall and a fetus will begin to develop. If the egg goes unfertilized, the thick lining that builds up during the menstrual cycle is not needed and is shed during your period. The unfertilized egg either dissolves or is absorbed into the body. After the period ends, a new menstrual cycle begins. (Source: excerpt from Menstruation: NWHIC)

Menstruation: NWHIC (Excerpt)

A period is a part of the menstrual cycle when the thick uterine lining and extra blood are shed through the vaginal canal. Periods can be light, moderate, or heavy, and the menstrual blood that is shed can range from a few tablespoons to a 1/2 cup per period. This can vary from girl to girl, and it can vary from period to period for the same girl. Many girls experience a light flow for the first day or two, then a heavier flow, followed by another light day. Some girls have a heavy flow on the first day. For the first few years after you start menstruating, your period may be very irregular. How old is a girl when she gets her first period? In the United States, the average age a girl starts menstruating is 12. However, this does not mean that all girls start at the same age. A girl can begin menstruating anytime between the ages of 8 and 16. Menstruation will not occur until all parts of a girl's reproductive system have matured and are working together. This time in a young woman’s life if called "puberty." (Source: excerpt from Menstruation: NWHIC)

Related information on causes of Menstruation:

As with all medical conditions, there may be many causal factors. Further relevant information on causes of Menstruation may be found in:


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