How is the menstrual cycle calculated?

The article was professionally consulted with Specialist Doctor II Tran Thi Mai Huong - Obstetrician and Gynecologist - Department of Obstetrics and Gynecology - Vinmec Hai Phong International General Hospital.

Knowing how to calculate the menstrual cycle will help women understand their menstrual cycle so that they can monitor what is going on in their body, and at the same time detect abnormal changes so that they can intervene. timely. So how is the menstrual cycle calculated? Please refer to the article below.

The menstrual cycle is a set of repeated physiological changes in the female body under the control of the sex hormone system and is necessary for reproduction. In women, the typical menstrual cycle occurs every month between puberty and menopause. Red lights are a normal part of a natural cyclical process that occurs in healthy women between puberty and late reproductive years.
Menstruation is also a sign that a woman is not pregnant. During the menstrual cycle, a sexually mature woman's body releases one egg (sometimes two). Before ovulation, the endometrium, which covers the surface of the uterus, builds up in a synchronized fashion. After ovulation, the endometrium changes to prepare for a fertilized egg to implant and form a pregnancy.
If fertilization and pregnancy do not occur, the uterus sheds its endometrium and a new menstrual cycle begins. A woman's menstrual cycle is usually about 28 days long, but in some cases it can last from 25 to 35 days.

Calculating the menstrual cycle will help women plan proactively to take care of themselves as well as anticipate problems that may occur during the red light day.
What is the menstrual cycle from? According to expert advice, a menstrual cycle is counted from the first day of menstruation until the first day of the next period. Here are the steps for you to calculate how many days your menstrual cycle is:
Step 1: Track your menstrual cycle by ticking the day the red light appears. This will be the start of your menstrual cycle. Step 2: Continue monitoring until the next red light appears and mark again. This is the end of the menstrual cycle. Step 3: From step 1 and step 2, you will get the start and end date of your menstrual cycle, from which to calculate your menstrual cycle. Step 4: Continuous monitoring for 6 months, you will be able to calculate your average menstrual cycle, from which you can calculate the next red light day to visit. For example:
The time to start the first menstrual period is on: April 1, 2019 The time to start the second period is on: April 29, 2019 Thus, your menstrual cycle is 28 days .