During critical days (menstruation), the mucous membrane of the uterus is rejected. Menses occur once a month and are accompanied by bloody vaginal discharge. The process begins at puberty and ends with the menstrual cycle with the onset of menopause.
Normally, critical days last from 3 days to 7. Blood loss is approximately 50-70 ml. The first day of menstruation is the day of the onset of spotting. The menstrual cycle is the interval from one menstrual period to the next. The last day before your next period is the last day of your menstrual cycle.
The duration of the menstrual cycle usually ranges from 21 to 35 days. The ideal 28-day cycle occurs in 15% of women. In most cases, your period starts between the ages of 9 and 16. Factors such as race, genetics, exercise intensity, nutrition, and physiology play a role. The harbinger of menstruation is the development of the mammary glands. It takes about two years between the onset of breast growth and the first menstruation. At the very beginning, menstrual cycles may be irregular. Don't worry, this is normal. During this period, the reproductive system is formed.
If you want to calculate critical days, first determine the length of your menstrual cycle. Use the calendar. For three to four months, note the dates for the first and last day of your cycle. Calculate the length of your cycle and, on this basis, calculate the day of the beginning of the next critical days.
Menstrual irregularities often occur. In other words, the duration of critical days changes. In addition, there may be changes in the amount of blood loss. If your period is less than 21 days or more than 35 days, see your doctor. If you notice that your periods are shorter or longer (less than 2 or more than 7 days), make an appointment with your gynecologist. Do not disregard too little or too much discharge. If such changes begin to occur in your body, be sure to visit a gynecologist.