THE MENSTRUATION

Menstruation is the periodic discharge of blood and mucuse tissues from the uterus and vagina.
Menstruation is the uterus weeping because pregnancy did not occur.It is the monthly shedding of a female's uteral lining It lasts from three days to one week and contains blood and tissue that leaves her body through the cervix and vagina.

FACTS ABOUT MENSTRUATION;
Few days before menstruation starts, many women  feel off colour. She  may feel  bloated, tired, irritable or have a headache.All  these may disappears  after menstruation sets in .
Menstrual cramps are common when a woman is experiencing her menstruation. Doctors think  that cramps are caused Prostagladin, a chemical that causes the muscles of the uterus to contract.
Some women crave certain foods while some develop acne.

PROBLEMS ASSOCIATED WITH  MENSTRUATION
There are some problems women encounter in relation with menstruation. This include pain, heavy bleeding and irregular periods.
Some women have painful periods. This is called DYSSMENORRHOEA. This can be relieved with over the counter painkillers.
A woman's period may become excessively heavy. This  problem may be aggravated by clots being expelled too which leaves the woman exhausted. If this remains unchanged for a long time, the woman should consult a doctor who will examine her to find out if she has become anaemic, has high blood pressure, has fibroid or a tumour in her ovary.
Irregular periods may be as a result  of emotional upset, pregnancy, excessive exercise or by strict dieting. It could also be as a result of  a tumour of the pituitary gland or because she stopped taking birth control pills. The woman should see a doctor for examination and if necessary a specialist so that they can find out  why she is not menstruating. 

THE START OF WOMANHOOD

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Soon after a child is born, parents behave differently towards the child depending on its sex. The way parents  behave towards a child because of its sex as well as their expectations from that child has an impart on the pattern of behaviour of a child. This impart makes the child to behave in a feminine or a masculine way. Once the child's behaviour is conditioned in such a way, it is very difficult to change.
A child's masculine or feminine behaviour, depending on its sex has two components.  The first is the way a person behaves to others to demonstrate he or she is a male or female. The second is the person's own awareness that he or she is a male or female.

THE MENSTRUAL CIRCLE

This is the various changes that occurs in the uterus and ovary for the purpose of sexual reproduction. The menstrual circle is essential for the production of eggs and for the preparation of the uterus for pregnancy.It only occurs in fertile female humans and other female primates.
The length of a menstrual circle varies among women ranging from 21 to 35 days with 28 days being the average.
The menstrual circle can be divided into 3 phases. A circle is counted from the first day of one period to the first day of the next period. The way and manner the hormones rise and falls during the month controls the menstrual circle.
In the first phase of the menstrual circle, the level of the female hormone called the estrogen rises. Estrogen also makes the lining of the womb grow and thicken.
The second  stage is called the ovulation. This is when an egg is released from the ovary into the fallopian tubes.  A woman can get pregnant at this time  if sperm fertilizes the egg. A woman with a 28 days circle will ovulate on the  fourteenth day of her circle
The last phase  is the phase after ovulation. Hormones are further released  to thicken the lining of the uterus in preparation for a fertilized egg. If  a woman becomes pregnant, the fertilized egg attaches itself to the lining of the uterus, but if she doesn't get pregnant,  the lining is shed off and this comes out as  the menstruation and another circle begins.