A mammogram, or other imaging process, is the only way to determine breast density. In short, a dense breast is composed of a higher ratio of breast tissue made up of milk-producing ducts and milk-carrying lobules and connective tissue to fatty tissue than a non-dense breast. The less fat, the denser the breast. While breast density is still being studied, it appears that a number of factors are likely at play in determining whether a woman will have dense breasts.
I did what the medical field and the countless number of cancer advocacy groups told me. I ate healthy, did monthly self exams, exercised daily, had yearly mammograms AND had no first-degree relative with breast cancer. Little did I know at the time that there was information about my health which impacts my life outcomes that was being kept from me — the patient — and others like me. I call it the best-kept secret - but it WAS known in the medical community.
A common abnormality seen on mammogram results is breast asymmetry. Breast asymmetry is usually no cause for concern. Breast asymmetry occurs when one breast has a different size, volume, position, or form from the other.
But that's exactly what breast density notification laws, currently in effect in about half the states in America, are doing. Dense breast tissue is very common and is not abnormal … but can make it harder to find cancer on a mammogram and may also be associated with an increased risk of breast cancer. Talk to your doctor about your own risks for breast cancer. Here's what you need to know. Breast density is a radiologic term that describes how well x-rays pass through the breast tissue.