Can a women Become a men?

Surgically it is possible. Those seeking such surgery believe they were born in the 'wrong' body, and seek to be their supposed true selves.

AnswerYes, it is possible, even without hormones or surgery. Because it is gender and thus a self-identified trait (like being gay or or Christian), one can identify as a woman/man as soon as one decides to. Transitioning to look more like women traditionally look is usually done through some combination of hormone therapy (taking doses of either estrogen or testosterone) and surgery.