The UK study of the causes of breast cancer

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The Generations Study is a large, comprehensive scientific study of the causes of breast cancer and includes over 110,000 women from the UK. Find out more about the study, its origins and purposes, and how it works.


About the generations study

Find out why the study is needed.

More about the study

The team

Breast cancer in men

Although breast cancer is much less common in men than women, about 370 men are diagnosed with this disease every year in the UK, and we are conducting a national study of the causes of male breast cancer.  

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Study data used to find factors behind age at puberty

Research using data from the Generations Study has shown a wide range of factors – some beginning before a child is born – affect the age at which a girl starts her periods, an important risk factor for breast cancer.

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For study

study participants

Find out how many women take part in the study and where they come from.



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