Breast Lumps: Causes, Breastfeeding & Armpit Swelling

Breast lumps or nodules, especially while breastfeeding, require careful evaluation to determine the cause. Recognizing when a hard lump is accompanied by swollen armpit nodes is essential for proper diagnostic follow-up.

What Are the Causes of Breast Lumps and Swollen Arm Pit Nodes?

Published Aug,14 2017 | By Sylvie Tremblay, MSc

The breasts contain a number of specialized cell types that work together to allow lactation. The glandular tissue of the breast is made up of lobules and ducts, which produce milk and carry that milk to the nipple.