Axillary Lymph Nodes

Written By Jeremy Kuecks

Lymph Nodes in Your Armpits (Axillary Nodes)

Your armpits do more than you think—they contain important parts of your immune system called axillary lymph nodes.

What Are They?

Axillary lymph nodes are small, bean-shaped glands in your armpits. They are part of the lymphatic system, which helps your body:

  • Fight infections

  • Remove waste and toxins

  • Keep fluids balanced

You have about 20–40 of these nodes in each armpit. They filter a fluid called lymph, which carries white blood cells that help protect your body.

What Do They Do?

These lymph nodes:

  • Filter harmful substances like bacteria, viruses, and toxins

  • Help fight infections using immune cells

  • Drain fluid from areas like your arms, chest, and breasts

  • Help detect cancer spread, especially in breast cancer

After being filtered, the lymph fluid goes back into your bloodstream near your heart.

Why Might They Swell?

Axillary lymph nodes can become swollen when your body is fighting something. Common signs include:

  • A lump or swelling in the armpit

  • Tenderness or soreness

  • Fever or feeling sick

Swelling is often normal during infection, but it should be checked if it doesn’t go away.

Helpful Facts

  • The lymphatic system doesn’t have a pump like the heart, so movement helps it flow

  • Things like exercise, deep breathing, and gentle massage can support lymph movement

  • Your body has more lymph fluid than blood

Key Takeaway

Your armpit lymph nodes are like tiny filters and defenders. They quietly work every day to keep your body clean and protected.

Note: This is for general information only. Always talk to a healthcare provider if you have concerns about swelling or your health.


Jeremy Kuecks http://ajbodywork.com
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