"The dangerous performance enhancing
steroids taken by athletes are
male steroid hormonal drugs
that build muscle.
One of their risks is liver cancer.
Similarly, female steroid hormonal drugs
build breast tissue.
They not only increase the risk
of liver cancer but breast and cervical
cancers as well.These powerful
steroid drugs are taken by millions
of teenage girls as BIRTH CONTROL PILLS.
Why are teenage girls vulnerable to the cancer-causing effects of birth control pills? Teenagers are especially vulnerable to breast cancer risk because their breasts are growing and most have not yet developed cancer-resistant Type 3 lobules through a full-term pregnancy. Therefore, the cancer-causing combination contraceptive steroids (birth control pills) are especially dangerous for them."
Read more and see diagrams and explanations at the link above.