In females, a number of successive hormonal changes occur in the body during adolescence. This change creates vaginal bleeding for up to 4 to 5 days every 28 days. Adenoma is the name given to this bleeding. The intervals are not the same every woman.21-35 days are considered normal. The duration of bleeding varies from 2 to 7 days. Six or more of these numbers can be pathological. Normal menstrual bleeding is initially small, multiplying gradually, then decreasing.

How does the sight seeing?
Each month the eggs in the ovaries begin to develop, called egg follicles, about 50 follicles. In general, only one or two of them complete the maturation by reaching an average size of 18-30 mm. The most mature follicle cracks (ovulation) and the egg (ovum) is released. If there is sperm in the environment and enough number of fertilization usually occurs in the tip of the tubes called fimbria. The time for the egg to stay alive is about 24 hours. If fertilized, it will degenerate. When it is fertilized, it is transported by the tuba to the womb, where it continues to develop by nesting.

There are no menstrual periods in pregnancy. If pregnancy does not occur, a series of changes in the uterus and menstruation occurs. The time between ovulation and menstrual bleeding is about 14 days. The best period for pregnancy is a few days before and after the laying. The duration of sperm survival in the female body ranges from 3 to 7 days.

The endometrium, which is the inner lining of the menstrual bleeding, is peeled off by bleeding to the basal layer. The next cycle from this remaining basal layer will develop a new functional endometrium, and if the pregnancy does not occur, the same events will be renewed and this system will continue to repeat itself.