Could someone get breast cancer at 30?

Yes but rare: It is possible to get breast cancer in the 30's if there are high risk factors: family history of young breast cancer, BRCA gene mutation carriers (aka Angelina Jolie), atypia in a breast biopsy. If you have any concern, you should find a breast specialist for evaluation or a risk risk program at your local breast cancer center.

Yes, but rare: As a breast cancer specialist, I have seen women as young as 12 with breast cancer. HOWEVER, the younger you are, the less likely. Factors such as genetics, lifestyle, obesity, family history, and toxic exposures can increase the risk of breast cancer. If you have a friend with a lump that is painless, growing, or just concerned, please urge her to see care. Ignoring it makes it worse. Luck