What Happens To Your Body When You Take Estrogen?
UCSF Transgender Care explains that when hormone therapy is initiated well beyond puberty, breasts may grow into, at most, a small B cup size. Additionally, breast development may be uneven. Some individuals choose to pursue breast augmentation in order to have their desired breast size and appearance. Estrogen also affects fat distribution throughout the body, per UCSF Transgender Care. This is most noticeable on the hips and thighs, and fat may collect here.
According to UCSF Transgender Care, additional effects of estrogen supplementation include decreased body hair overall and changes in body hair distribution. For example, if you have hair on your back, chest, or arms, it will grow slower. However, it will most likely not completely go away, and so some seek out additional treatment to completely remove body hair.
Per UCSF Transgender Care, other bodily changes include a possible impact on your emotional state and reproductive health. For example, if you are transitioning from male to female, you will notice a decrease in erections, and your testicles will decrease in size.