you may be confusing estrogen and anobolic steroids im sure women have tried taking estrogen to enlarge their boobs. it probly doesnt work or we would hear about it
1.Women do take estrogen and it does make their boobs larger, its called the pill. 2.Men grow boobs from steroids because they take a lot of testosterone and their body makes estrogen to compensate. then when the roid cycle ends all of a sudden the testosterone level is shot since the body hasnt been makeing it at all and you stoped injecting it. BUT your bodys estrogen level takes time to go down, and in that period of high estrogen, boobs can grow if PCT dosnt work or is left out.
When done correctly (male steroids) people use an estrogen blocker to stop tissue growth under the nipples. People don't realize that there are more to taking steroids and getting big than just taking a pill.