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Diagram illustrating how the uterus lining builds up and breaks down during the menstrual cycle Menstruation (also known as a period, among other colloquial terms) is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. The menstrual cycle is characterized by the rise and fall of hormones. Menstruation is triggered by falling progesterone ...
Pepper them with thought-provoking science, math, history, and art questions. These quiz questions and answers are easy and funny.
Menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the ...
Chance of fertilization by menstrual cycle day relative to ovulation [14] Pregnancy rates for sexual intercourse are highest during the menstrual cycle time from some 5 days before until 1 to 2 days after ovulation. [15] For optimal pregnancy chance, there are recommendations of sexual intercourse every 1 or 2 days, [16] or every 2 or 3 days. [17]
Starting menstruation is an important sign of health. A new study shows that the trend of children starting at an earlier age may point to worrying conditions. Kids are starting menstruation ...
When Tera Penoyer found out that her 11-year-old daughter had started her menstrual cycle, the Michigan mom immediately knew what to do: Throw a party. “We had red balloons and posters that said ...
Menstruation is a cultural as well as scientific phenomenon as many societies have rituals, social norms, and religious laws associated with it. These typically begin at menarche and may be enacted during each menstruation cycle. Menarche is important in determining a status change for girls.
In addition to tracking the day that periods start, Dr. Myda Luu, area specialty chief of ob-gyn for Kaiser Permanente, recommends that people who menstruate track “cycle duration, frequency and ...