Causes of Breast Enlargement During Menopause

Mar 31, 2025 Source: Cainiu Health
Disease description:

After entering menopause, I have recently noticed that my breasts have significantly enlarged. Not only has their appearance changed, but I occasionally experience a feeling of fullness and pain. I'm very concerned and would like to ask: what causes breast enlargement during menopause?

Doctor's answer (1)
Dr. Zhang Lu

Enlargement of the breasts during menopause may be caused by changes in the body's estrogen levels. As ovarian function gradually declines, estrogen secretion may decrease, leading to endocrine disorders and subsequent changes in breast tissue, which can cause breast enlargement.

During the early stages of menopause, known as perimenopause, fluctuating estrogen levels may lead to breast tissue proliferation, manifesting as breast enlargement or increased sensitivity. This is because estrogen can stimulate the growth and development of breast tissue. As menopause progresses and ovarian function further declines, estrogen levels continue to drop, and breast tissue may gradually atrophy, with breast size possibly returning to normal or becoming smaller.

In addition, mastopathy (fibrocystic breast disease) is also a common cause. This condition results from endocrine disorders that lead to the proliferation of breast epithelial cells and fibrous tissue. When estrogen levels rise, breast tissue proliferates, causing an increase in breast volume.

If there is persistent breast enlargement or other abnormal changes, it is advisable to seek timely medical evaluation for appropriate diagnosis and targeted treatment.