Younger women, women who have never had children, and women who have used birth - ​ control pills for a long time may have as much as a 20 - ​ percent higher risk of breast cancer.
गर्भनिरोधक गोलियों और स्तन कैंसर के बीच संबंध पर रिपोर्टें सुझाती हैं कि इनके प्रयोग से कम ख़तरा है ।