A word that means beginning of menses or menstruation is menarche.
What is menarche?
- Menarche is that the first menstrual cycle, or first menstrual bleeding, in female humans.
- From both social and medical perspectives, it's often considered the central event of female puberty, because it signals the possibility of fertility.
- When menarche occurs, it indicates that the girl has had a gradual estrogen-induced growth of the uterus, especially the endometrium, which the "outflow tract" from the uterus, through the cervix to the vagina, is open.
- When a lady experiences menarche, the blood flow can vary from a slow and spotty discharge to a uniform blood flow for 3-7 days. While the colour of the blood does range from a brown to bright red color, this is often normal; some women have light periods while others have heavy ones; everyone is different.
- In very rare instances, menarche may occur at a strangely early age, preceding the larche and other signs of puberty. This is often termed isolated premature menarche, but other causes of vaginal bleeding must be investigated and excluded.
- Growth is typically normal. Isolated premature menarche is never the first manifestation of precocious puberty.
- When menarche has did not occur for more than three years after thelarche, or beyond 16 years old , the delay is mentioned as primary amenorrhea.
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