Underarm Sweating
Axilla
“Axilla” is the term you will meet in medical writing about underarm sweating, so it is useful to recognize.
The axilla is the anatomical name for the underarm — the hollow beneath the shoulder joint where the arm meets the body. It is warm, folded, and rich in sweat glands, which is why it is central to discussions of sweating and body odor.
What the axilla is
The axilla is simply the underarm: the pocket of skin beneath the shoulder where the upper arm meets the torso. “Axillary” is its adjective, as in axillary sweating or axillary hyperhidrosis.
Anatomically it is a warm, sheltered hollow, usually covered by clothing and often bearing hair — all features that shape how it sweats and how odor forms there.
Why the axilla sweats and smells
The axilla is one of the few areas of the body dense with apocrine glands as well as eccrine glands, and it also holds hybrid apoeccrine glands. That mixture, plus its warmth and cover, is why it sweats readily in response to both heat and emotion, and why it is the classic site for body odor.
Why the term is used
Medical sources use “axilla” and “axillary” for precision, so recognizing the word lets you read guidance about underarm sweating and connect it to the everyday term.
Frequently asked questions
Is the axilla the same as the armpit?
Yes. Axilla is the anatomical name for the armpit or underarm. Its adjective, axillary, appears in terms like axillary hyperhidrosis, meaning excessive underarm sweating.
Why do medical sources say axilla instead of armpit?
It is simply the precise anatomical term, used for clarity in medical writing. Recognizing it lets you connect clinical guidance — such as axillary hyperhidrosis — to the everyday word for the same place.
Sources & further reading
Reputable organizations with more on sweating and related topics. Offered for further reading and general education, not as citations for any specific claim on this page.
General educational information about sweating. Not medical advice, and not a substitute for diagnosis or treatment by a qualified healthcare professional.