A girl’s breasts are big on one side and small on the other, which may be caused by congenital developmental abnormality, improper breastfeeding, breast disease and other reasons.
1. Congenital developmental abnormality: there may be abnormalities in the embryonic differentiation and developmental stage, which may cause breast underdevelopment, resulting in one side of the chest being big and one side being small, with no uncomfortable symptoms, and no need for special treatment.
2. Improper breastfeeding: During pregnancy, elevated levels of estrogen and progesterone can cause the breasts and milk ducts to develop again, resulting in an increase in the size of the breasts. However, incorrect breastfeeding postures and partial milk during breastfeeding can cause the breasts to become larger on one side and smaller on the other.
3. Breast diseases: such as acute mastitis, cystic hyperplasia of the breast, etc., can also increase the volume of the affected side of the breast, resulting in unequal breast size and asymmetry, can also be accompanied by breast swelling and pain, fever and other symptoms, through physical examination, ultrasound, blood tests can assist in the diagnosis.
There are many reasons why girls’ breasts are bigger on one side and smaller on the other. It is recommended to consult with a regular hospital for a clear diagnosis and standardized treatment under the guidance of a doctor.