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Age of Menarche

12

12.5

13

13.5

14

14.5

15

15.5

16

16.5

Click on a country for details.

Age of Menarche by Country 2024

The term “menarche” refers to a young woman’s first menstrual cycle and is often seen as an important milestone in her life. For many, it represents something of an unofficial transition from childhood to young adulthood. However, the age at which a young woman might experience menarche can vary greatly from one individual to the next.

There can also be noticeable differences in the average age of menarche from one country to another. Here’s an overview of how those differences can break down, as well as some factors that can potentially impact the average age of menarche for a certain country.

Countries with the Youngest and Oldest Average Ages of Menarche

Generally speaking, menarche occurs on average between the ages of 11 and 15. However, it can certainly happen either earlier or later for a particular young woman based on other factors like genetics, nutrition, socioeconomic environment, etc.

The following are some of the countries with the youngest menarche ages as of 2023.

Country
Age of Menarche
Greece12
Republic of the Congo12
Thailand12.3
Spain12.31
China12.38
Mexico12.4
Japan12.5
South Africa12.5
Portugal12.5
Argentina12.59

Factors That Can Impact National Average Age of Menarche

Factors that can contribute to national menarche age trends can include examples like the following.

Physical Activity

The lower body fat percentages associated with active lifestyles and lots of exercise can sometimes delay menarche for a young woman. For that reason, it may occur later rather than sooner in countries where active lifestyles are the norm.

Health Factors

The quality and accessibility of healthcare services and nutritious food can contribute to the average age of menarche in a country. Better nutrition and easier access to adequate healthcare solutions can lead to earlier average menarche ages.

Psychological Factors

Psychological factors like stress can also influence how early or late a young woman experiences menarche. Stress and trauma often correlate to a later average menarche age.

  • The age of menarche is the age at which a female human experiences menstruation for the first time.
  • Data listed as mean (average) or median (midpoint) age depending upon the country.

Download Table Data

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Country
Age of Menarche
Data Type
Nepal16.2Median
Senegal16.1Mean
Bangladesh15.8Mean
Papua New Guinea15.8Mean
Haiti15.37Mean
Tanzania15.21Mean
Nigeria15Median
Somalia14.78Mean
Cameroon14.61Mean
Czech Republic14.6Mean
Slovakia14.6Mean
Kenya14.4Mean
Yemen14.4Mean
India14.31Mean
Algeria14.3Mean
Malaysia14.2Mean
Nicaragua14Mean
Ghana13.98Mean
South Korea13.9Mean
DR Congo13.83Mean
Sudan13.75Mean
Morocco13.75Median
Guatemala13.75Mean
Zambia13.7Mean
Philippines13.6Mean
Taiwan13.6Mean
Ireland13.52Mean
Sri Lanka13.5Mean
Zimbabwe13.5Mean
Romania13.47Mean
Uganda13.4Mean
United Kingdom13.3Mean
Israel13.29Mean
Turkey13.28Mean
Peru13.23Mean
Egypt13.2Mean
Netherlands13.2Mean
Finland13.2Mean
Norway13.2Median
Jamaica13.1Mean
Sweden13.09Mean
Poland13.06Mean
Iceland13.06Mean
France13.05Median
Cuba13.01Mean
Indonesia13Mean
Russia13Mean
Australia13Median
Chile13Median
Belgium13Median
Switzerland13Mean
Denmark13Mean
Hungary12.9Mean
New Zealand12.9Mean
United States12.8Mean
Germany12.8Mean
Colombia12.8Mean
Vietnam12.7Mean
Canada12.7Mean
Venezuela12.68Median
Dominican Republic12.6Mean
Argentina12.59Mean
Japan12.5Mean
South Africa12.5Mean
Portugal12.5Mean
Mexico12.4Mean
China12.38Median
Spain12.31Mean
Thailand12.3Mean
Greece12Mean
Republic of the Congo12Mean
showing: 71 rows

What is the age of menarche in Europe?

Europe's age of menarche is typically between the ages of 11 and 14.

Why is the age of menarche declining?

There are many factors that are believed to have led to the menarche age declining over the years, including dietary factors, genes, BMI, stress, and the products that we use.

Frequently Asked Questions

Sources