What are the most common side effects associated with estrogen therapy?
The most common side effects for estrogen products are uterine bleeding (starting or returning), breast tenderness or pain (increased density and sometimes enlargement), nausea, abdominal bloating, fluid retention in extremities, changes in the shape of the cornea of the eye (sometimes leading to contact lens intolerance), headache (sometimes migraine), dizziness, and hair loss. While these are the most commonly reported side effects, not everyone experiences these and some of these may be dose-related and may improve or go away if you switch to a lower dose.
