The axilla (pl.: axillae or axillas; also known as the armpit, underarm or oxter) is the area on the human body directly under the shoulder joint.

Dec 14, 2025 · Find out how factors like infections and autoimmune diseases can lead to armpit pain. Learn when it's a concern and how to address it effectively.

Dec 27, 2024 · From muscle strains, bacterial and viral infections, and skin rashes, here are 9 possible causes of armpit pain and when to see a doctor.

Sep 29, 2025 · The axilla is the area located between your chest and upper arm. It’s also called an armpit or underarm. It contains blood vessels, nerves and lymph nodes.

Mar 27, 2025 · Swollen lymph nodes can have various causes, including infection. See pictures and learn about the possible causes of swollen lymph nodes in the armpit.

Jul 21, 2024 · There are many causes of armpit pain, from a mild muscle strain to more serious conditions like breast cancer. Learn more about causes of armpit pain in this article.

Nov 2, 2025 · What Are the Signs of an Armpit Lump? A lump in your armpit is a symptom of several conditions. It can range in size, shape, and texture.

Apr 8, 2023 · It's a pyramidal space that can be found between the upper part of the arm and the side of the chest wall. This space is bounded in front and behind by axillary folds. The lymph nodes, axillary …

Dec 31, 2024 · The axilla, commonly referred to as the armpit, serves as a vital anatomical passageway that allows for the transmission of critical structures between the neck, thorax, and upper limb.

Jun 25, 2025 · The armpit, also known as the axilla, is a pyramid-shaped area located between the shoulder girdle and thorax. It contains several muscles, including the serratus anterior, pectoralis …