What are the types of menstrual disorders? About the cause and improvement method

I think some people are worried that their menstruation is not normal, such as "I feel like my menstruation is late or early, my period is irregular" or "I feel like I have more menstruation than others ."

In this article, we explain the types and causes of menstrual irregularities, as well as guidelines for seeing a doctor, for those who are worried about their menstrual irregularities.

If you're wondering if your menstruation is normal, check it out to see if it applies to you.

  • What is menstrual disorder
  • Types and causes of abnormal menstruation
  • How to improve
  • Guideline for getting sick due to menstrual irregularities

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What is menstrual disorder?

Menstrual irregularities are abnormalities in the menstrual cycle, the number of days of bleeding , and the amount of menstrual flow .

The average menstrual cycle is 25-38 days, the number of days of bleeding is 3-7 days, and the amount of menstrual blood is 20-140 ml.

If it deviates from this guideline, consider the possibility of menstrual irregularities.

Isn't it relatively common to hear that "the timing of menstruation is different and menstruation is irregular"?

In fact, in addition to the timing of menstruation, menstrual abnormalities include the number of days that bleeding continues and the amount of menstrual blood that is not normal.

Types and causes of menstrual irregularities

Menstrual abnormalities are classified into several categories, such as how long it takes for the next menstrual period to come, and how much or too little menstrual flow you have.

In addition, menstrual irregularities are often caused by hormonal imbalances, but they can also be caused by diseases of the uterus or ovaries.

Here are seven types of menstrual irregularities and their causes.

Check it out if you feel like your menstruation is not normal.


Oligomenorrhea is a condition in which the next menstruation does not come easily , such as a cycle of 39 days or more and less than 3 months .

Oligomenorrhea can occur if the eggs grow slowly or if ovulation is not occurring normally. It should be noted that if ovulation is not performed normally, it may cause infertility, so caution is required.

frequent menstruation

On the other hand, a menstrual cycle abnormality in which the next menstruation occurs within 24 days is called polymenorrhea.

It is the opposite of oligomenorrhea, in which the frequency of menstruation increases .

Some women even have two menstrual cycles within a month. As a result, you may become anemic due to increased bleeding. Oligomenorrhea can occur during menopause.


Amenorrhea is defined as the absence of menstruation for more than 3 months in the absence of pregnancy .

Apart from physiological amenorrhea such as during pregnancy and after menopause, there are two types of amenorrhea that are judged to be abnormal: primary and secondary.

Primary amenorrhea is a condition in which menarche does not occur even after the age of 18. It is rare because of malformation of the uterus and vagina, and congenital abnormalities in female hormones.

On the other hand, secondary amenorrhea is a relatively common symptom that can occur due to severe stress, excessive exercise, being underweight, and diseases such as polycystic ovary syndrome (PCOS).


Menorrhagia is the condition of excessive menstrual bleeding.

However, it is difficult to actually measure the amount of bleeding. As a guideline , you need to be careful if you don't have a napkin change in an hour, have a liver-like blood clot, or need to wear a night napkin even during the day . There are cases where there is an abnormality in the uterus such as uterine fibroids and adenomyosis, and cases where there is no particular abnormality but there is a large amount of bleeding.

Prolonged menstruation

Prolonged menorrhagia is defined as prolonged bleeding for more than 8 days .

As your menstrual flow increases, the number of days you bleed may also increase.

In other words, hypermenorrhea and hypermenorrhea are often seen at the same time.

Both lead to increased bleeding, which increases the chance of anemia.

hypomenorrhea, hypermenorrhea

Hypomenorrhea is a condition in which the amount of bleeding is small, and hypomenorrhea is a menstrual period that is shorter than 2 days.

If you don't need to change the napkin, or if the amount of bleeding is enough for a vaginal sheet, it may be hypomenorrhea. It may occur when the secretion of female hormones is insufficient due to stress or menopause, or when the corpus luteum, which is necessary to maintain pregnancy after ovulation, malfunctions.

Both menorrhagia and menorrhagia can occur together.

How to improve

How to improve menstrual irregularities depends on the cause of menstrual irregularities and whether you want to get pregnant right now.

Therefore, it is important to first undergo an examination by a gynecologist and receive appropriate treatment .

If it is caused by stress, it may be improved by reviewing daily life (sufficient sleep, proper weight, and avoiding stress).

Other treatments may be given depending on the disease or to prevent infertility or future illness.

Low-dose pills may also be used to improve menstrual irregularities or reduce menstrual flow.

Ovulation is often abnormal in people with menstrual disorders.

As a countermeasure that you can do by yourself, let's attach a basal body temperature chart that will help you understand whether you are ovulating or not.

Should I go to the hospital for menstrual irregularities?

In conclusion , when you see menstrual irregularities, you should consult a gynecologist .

This is because it may be a hidden disease or cause infertility or future disease.

If you are going to see a doctor for menstrual irregularities, there are many cases where there is no problem even during menstruation, but it is safe to check with the gynecologist in advance about the timing of the visit.

Gynecological examinations are better during menstruation, and some examinations cannot be done during menstruation.

If you have a record of your menstruation or a chart of your basal body temperature, be sure to bring them with you when you see a doctor.

In addition, skirts are recommended as you may have to have a pelvic examination for uterine and ovarian examinations.

Also read the following articles
Introduction to the causes of irregular menstruation, how to deal with it, and examinations at hospitals


In this article, I explained the types of menstrual irregularities, their causes, how to improve them, and how to see a doctor.

The contents are summarized below.

  • Dysmenorrhea is a condition outside the normal range of menstruation.
  • Hormonal imbalance is often the cause, but there is also the possibility that it is due to diseases of the uterus, ovaries, etc.
  • The treatment of menstrual irregularities varies depending on the cause and the desire to become pregnant, so it is important to have an examination at a gynecologist.
  • If you have menstrual irregularities, consult a gynecologist because there is a possibility that you may have a hidden disease or become infertile.

Menstruation is also a health barometer that tells you the state of your body.

Menstrual irregularities are often temporary, but they can also be signs of illness.

If you are concerned about which part of your body is causing your menstrual irregularities, consider visiting a gynecologist.

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