Hormones: Hormone replacement therapy and birth control pills can make breasts more dense. Breastfeeding: Dense breast tissue is involved in milk production. What is the risk of cancer in breast density?.
Mammogram films showing the four levels of breast density. Breast density — The What causes dense breast tissue? It's not clear why some.
It is important that people are aware of the density of their breasts. For example , as people get older, hormonal changes may cause more fatty.