Asymmetrical breasts are a common concern among adolescents but also among adult women. It is quite common for each breast to have a slightly different size than one another. Breasts are known as asymmetric when their shape, size and position are different. Breast asymmetry affects more than half of all women.
Breast asymmetry is measured through mammogram or even with 3D – Scan.
Anatomy of the Breast
The breasts are made of specialized glandular tissue as well as fatty tissue, located within the front wall of the chests. This specialized glandular tissue produces the milk, necessary for breastfeeding after childbirth. The amount of fat tissue determines the size of the breasts. An average breast weighs between 7 – 10 ounces and is usually made of 12-20 lobes, which spread from the nipple. Each lobe, which has a triangular form, has a central duct that opens at the breast nipple. Through these central ducts the milk produced in these lobes is excreted for breastfeeding. The dark area which surrounds the nipple is known as areola.
Every woman should know that the breast tissue changes with the menstrual cycle. It is normal to have full and bigger asymmetrical breasts, which are also more sensitive during the ovulation period, while during menstruation period the breasts shrink again.
More info: https://www.thewomenschoice.com/asymmetrical-breasts-is-there-a-reason-to-be-concerned/