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Puberty is considered delayed when the child has not begun puberty when two standard deviations or about 95% of children from similar backgrounds have. [7] [8] [9]In North American girls, puberty is considered delayed when breast development has not begun by age 13, when they have not started menstruating by age 15, [2] and when there is no increased growth rate. [8]
Amenorrhea or amenorrhoea is the absence of a menstrual period in a female who has reached reproductive age. [1] Physiological states of amenorrhoea are most commonly seen during pregnancy and lactation (breastfeeding). [1] Amenorrhoea is a symptom with many potential causes. [2]
Black children of low socioeconomic status are starting their periods earlier than the average age, and it takes more time for their menstrual cycles to become regular, according to a new report.
A third of teens and young adults in the U.S. can’t afford or otherwise access menstrual products, according to new research from Children’s National Hospital in Washington, D.C.
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 ...
In the United States, some public schools have a sex education program that teaches girls about menstruation and what to expect at the onset of menarche (often this takes place during the fourth grade). Historically menstruation has been a social taboo and girls were taught about menarche and menstruation by their mothers or a female role model.
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 ...
Oligomenorrhea is infrequent menstrual periods. [1] Generally the menstrual periods occur at intervals of greater than 35 days, with less than 9 periods in a year, where previously there had been a regularly established pattern. [1] The period may be light or short in duration, and irregular. [1]