Written by Anushta Chandrapalan, M.Sc  | 
Medically Reviewed by Dr. Nithin Jayan, MBBS, DNB on Feb 20, 2016

Glossary

Estrogen: Female sex hormone produced primarily by ovaries and in smaller amounts by conversion of male hormone made in the adrenal gland. In breast cancer, estrogen may promote the growth of cancer cells.

Pregnancy: Growth of an embryo/fetus in the uterus.

Puberty: The time when body changes particular to the sex occur and when reproduction becomes possible.

Breast cancer: A cancer that affects the breasts or mammary glands.

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