Knowing what a breast is made of helps patients understand what they are feeling during a self-exam. Knowing this helps them answer the question, “Is this lump normal or new?” Study the image above and get to know the different parts of a breast.

Here are some facts to keep in mind:

Breasts change as you get older, with breast tissue becoming more fatty usually around age 40. This is one reason regular mammograms start after the age of 40. It's more difficult to get a clear picture with dense breast tissue. It's easier to find a cancerous lump when the tissue has more fat.

Breastfeeding causes many changes to the breasts, which are also normal. A lactation consultant can help patients during this time to help with any problems or questions. You may have women in your teaching session that are breastfeeding, or women who may breastfeed in the future. It's important to talk about the changes caused by breastfeeding to help empower women with this information.

Breasts also change during menstrual cycles. Leading up to a woman's menstruation, it's common for breasts to become more tender and lumpy.

These and many other changes are explained in the next sections. Answer the questions below and let's learn more!