Irreversible changes
breast development,
enlarged nipples and areolae,
Reversible changes
redistribution of body fat,
reduced muscle development,
various skin changes,
significantly reduced body hair,
change in body odor and sweat production,
less prominence of veins,
ocular changes,
gonadal size
The psychological changes are harder to define, since HRT is usually the first physical action that takes place when transitioning. This fact alone has a significant psychological impact, which is hard to distinguish from hormonally induced changes. Many also report feeling more confident.