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The normal composition of bacteria in the vagina (vaginal flora) can vary, but is most commonly dominated by lactobacilli. [1] On average, there are approximately 10 8 to 10 9 bacteria per milliliter of vaginal discharge. [1] [4] Normal vaginal discharge is clear, white, or off-white. [1]
And while brown discharge before or after your period is normal, if it’s happening frequently, you should get it checked. As for vaginal odor , a strong, fishy smell is a reason for concern.
The first day of menstrual bleeding is the date used for the last menstrual period (LMP). The typical length of time between the first day of one period and the first day of the next is 21 to 45 days in young women, and 21 to 35 days in adults. [2] [3] The average length is 28 days; one study estimated it at 29.3 days. [10]
Vaginal discharge is normal, and causes of change in discharge include infection, malignancy, and hormonal changes. It sometimes occurs before an adolescent female has her first period , and is considered a sign of puberty .
Spotting before your period is usually due to normal hormonal fluctuations. But it could also be a sign of a condition like PCOS, fibroids, or endometriosis.
Throughout the menstrual cycle, the quantity and consistency of the discharge undergo variations. At the start and end of the cycle when estrogen levels are low, the discharge is dense, adhesive, and unwelcoming to sperm. As estrogen levels increase before ovulation, the discharge gradually becomes clearer, more liquid, and stretchier. [11]
For example a Korean study in 2011 showed an overall average age of 12.7, with around 20% before age 12, and more than 90% by age 14. [5] A Chinese study from 2014 published in Acta Paediatrica showed similar results (overall average of age 12.8 in 2005 down to age 12.3 in 2014) and a similar trend in time, but also similar findings about ...
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 ...