It is not unusual for women to have one breast smaller than the other: Breast asymmetry may occur in half of all women, possibly because of varying amounts of female hormones, including estrogen and progesterone, that affect the size and development of breasts.
Best Ways to Fix Your Uneven Chest & Pecs
How to Correct One Breast That's Larger Than the Other With Exercise
Why Do I Have Breast Pain on One Side? 9 Breast Pain Causes
Unequal breast size home remedies: Try these home remedies to even out the unequal breasts
Five Solutions to Uneven Breast Size
Fitness livestrong
Fixing Uneven Breasts, Breast Asymmetry
Psychological toll of having one breast bigger than the other
Breastfeeding: Help! One breast is larger than the other!
Lopsided Breasts From Breastfeeding: What to Do