What is a lymph node in the breast and what does it feel like?

We all have them: You have lymph nodes throughout the body. Typically a normal lymph node in the breast cannot be felt. We get concerned if there are enlarged lymph nodes under the armpit. This is the first place a cancer stops before traveling to the rest of the body. Sometimes we can see lymph nodes on mammogram/ultrasound. If it is normal size, then it is okay.

Can't feel normal 1: Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph for anything bad like bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. They shrink when all is well.