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dense breasts

Breast Density

The breast contains ducts, glands, fibrous connective tissue, and fatty tissue. Breasts that are dense or very dense have a lot of fibrous, connective tissue and less fatty tissue. Breasts that are not dense contain almost all fatty tissue and very little fibrous tissue. Virtually all women start out with very dense breast tissue. Over time this changes, and, as a woman ages, her breasts typically become more fatty. However, there are some women whose breasts remain fibrous and dense, even after menopause.