Many women operate under the assumption that lifting weights, or strength training in general, will cause them to look larger. Au contraire, ladies. Women are physiologically unable to gain an unsightly amount of muscle mass because a muscle’s volume is increased by testosterone. Women do not naturally have enough testosterone to bulk up.
Additionally, muscle is more compact than fat. A pound of muscle is smaller in size than a pound of fat. Women with more muscle mass may in fact look smaller because of this.