About 3% of all breast cancers occur in women under the age of 35. Although it is rare in young women, cancers seen in this age group have a worse course.
Breast cancer is quite rare in young women between the ages of 13 and 19.
A family history of breast cancer, genetic and environmental factors, radiotherapy involving the chest area for another disease, the use of birth control pills and pregnancy are thought to be risk factors, to varying degrees, for breast cancers seen in young people.
The most important risk factor for breast cancer is age. Less than 1% of breast cancers occur in women under the age of 30, and a woman’s risk of developing breast cancer before the age of 30 is 0.44%.
