Menstruation is a woman’s monthly normal vaginal bleeding
often called the period.
When a baby girl is born, her ovaries contain hundreds of
of eggs, which stay inactive until puberty begins
There isn't one right age for a girl to get her period but Most
girls get their first period about 2 years after their breasts start
to develop. when they're between age 10 and 15 but it's
different, every girl's body has its own schedule
two structures in the brain, the pituitary gland
and the hypothalamus
produce complex hormones that stimulate the ovaries to
make female sex hormones start and control
The menstrual cycle. and it will continue to about age 51
usually lasting from three to 8 days
The menstrual cycle includes several phases
The first phase of the menstrual cycle begins on the first
day of bleeding and lasts for about 14 days
The pituitary gland (located at the base of the brain
releases a hormone called FSH. This hormone
causes one fluid-filled “follicles contain a mature egg
to develop. The maturing follicle produces the hormone
called estrogen. which increases over and peaks in about
day 12 and causes The lining of the uterus (endometrium) to
to become thicker and more enriched with blood vessels.in fact
the women's body prepares to get pregnant
On about day 14, the high amount of LH and FSH cause
he egg to be released from the follicle, the high level
of LH also causes a brief surge in testosterone, which increases
sex drive, right at the most fertile time of the cycle
After release, the egg enters the fallopian tube
tiny hairs in the tube's lining help push it down the narrow
passageway toward the uterus
if the sperm cell can successfully meet an egg cell in
the fallopian tube, the fertilization will take place here
Once the egg is released, the follicle seals over and this is
called the corpus luteum
After the release of the egg, levels of FSH and LH decrease
The corpus luteum produces progesterone
If fertilization has occurred, the corpus luteum continues
to produce progesterone which prevents the endometrial
lining from being shed
If the egg is not fertilized, it disintegrates after about 24 hours
then the corpus luteum also disintegrates
which causes progesterone levels to drop and signals the
endometrial lining to begin shedding after about 14 days
The menstrual blood is partly blood and partly tissue from
inside the uterus. It passes out of the body through the vagina
the period comes again every 24-38 days from the first day
of one period to the first day of the next
Besides bleeding from the vagina, you may have
Abdominal or pelvic cramping pain
Lower back pain
Headache fatigue
Mood swings and irritability
Food cravings
Bloating and sore breasts