Why is some woman have irregular maturation .eg after her norman maturation period. about a week bleeding star?
Periods start during puberty (10-16 years) and continue until the menopause (45 to 55 years). The average menstrual cycle lasts 28 days, but commonly varies between 24 days and 35 days. It can take up to 2 years for a girl’s periods to settle into a regular cycle, and some find that their periods are quite painful during this time. After puberty, most women develop a regular menstrual cycle, with a relatively consistent length of time between periods. Menstrual bleeding normally lasts between 2 and 7 days, with the average length of bleeding being 5 days. However, some women will always have an irregular menstrual cycle with wide variations in the interval between periods, the amount of blood lost and the duration of bleeding. A disturbance in the balance of oestrogen and progesterone, which regulate the menstrual cycle is a common cause of irregular periods. Hormone imbalance can occur as a result of weight loss or gain, heavy exercise, stress or illness. Irregular bleeding is normal