AI-translated archive post

Axillary Hyperhidrosis: Why Does It Smell?

Oganacell dermatology clinic · 잠실피부과 오가나셀 · May 22, 2025

Axillary Hyperhidrosis Why Does It Smell? Do you sweat a lot under your armpits even when it’s not hot? Does sweat start running as soon as you feel a little nervous? In some cases...

AI translation notice

This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Oganacell dermatology clinic

Original post date: May 22, 2025

Translated at: April 20, 2026 at 5:12 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

Axillary Hyperhidrosis

Why Does It Smell?

Do you sweat a lot under your armpits even when it’s not hot?

Does sweat start running as soon as you feel a little nervous?

In some cases, this can even cause discomfort in daily life due to an unpleasant smell mixed with a scent.

These symptoms are commonly referred to as “axillary hyperhidrosis” or bromhidrosis, and they can interfere with everyday life.

So, let’s take a look at why axillary hyperhidrosis causes odor and how it can be managed.

Axillary Hyperhidrosis: Why Does It Smell? image 1

Why do we sweat?

Sweat glands are broadly divided into eccrine glands and apocrine glands.

Sweat secreted from apocrine glands is initially almost odorless, but as it is broken down by bacteria living on the skin, odor is produced.

When this sweat is secreted excessively, it can leave yellow stains on clothes or cause a damp, uncomfortable feeling.

  1. Eccrine glands

Produce sweat for body temperature regulation.

(transparent like water and odorless)

  1. Apocrine glands

Distributed in the armpits, groin, and similar areas, and secrete sebum components together with proteins.

Axillary Hyperhidrosis: Why Does It Smell? image 2

Conditions that make odor worse

Odor becomes stronger when it is not caused by sweat alone, but by multiple factors acting together.

In particular, bacteria, lifestyle habits, and possibly genetic factors can play a role.

1 ) Bacterial growth

The armpit does not get much air circulation, so bacteria can multiply easily, which can cause odor.

  1. Clothing material

Synthetic fibers have poor breathability, so odor can linger longer and may contribute to odor formation.

Axillary Hyperhidrosis: Why Does It Smell? image 3

  1. Stress

Because of sympathetic nervous system activation, apocrine gland secretion increases, which can contribute to odor formation.

  1. Stimulating eating habits

Although it can vary by individual, spices, garlic, and meat consumption can make body odor stronger.

Axillary Hyperhidrosis: Why Does It Smell? image 4

What is the difference between ordinary underarm sweat and hyperhidrosis?

Ordinary sweating and hyperhidrosis can be viewed differently.

Sweating caused by hot weather or exercise is usually a temporary symptom,

whereas hyperhidrosis can occur regardless of temperature or physical activity and may appear due to nervousness, stress, and similar triggers.

Excessive sweating may be produced more than necessary, either all the time or in specific situations.

Hyperhidrosis often occurs in localized areas such as the hands, feet, face, and armpits, and the degree of discomfort varies from person to person.

Axillary Hyperhidrosis: Why Does It Smell? image 5

Ways to manage it in daily life

Management as part of preventive lifestyle care should start from the daily routines we all do every day.

After showering, it is best to dry thoroughly so that moisture can evaporate well before putting on a gown or clothes.

Also, clothing with good breathability, such as cotton sleeves or linen, is recommended, and please avoid stimulating foods such as caffeine and alcohol.

Above all, excessive stress can trigger sweating, so habits that help relieve tension are also important.

In addition, thorough hygiene care for the armpits is helpful for keeping odor from developing.

Axillary Hyperhidrosis: Why Does It Smell? image 6

Sweat itself is not bad

Sweat is an important physiological process that helps the body regulate temperature and eliminate waste products.

However, if sweat is continuously and excessively secreted in certain areas, or if it causes an unpleasant odor and discomfort in daily life, it is necessary to check your lifestyle habits

and maintain thorough personal hygiene.

Axillary Hyperhidrosis: Why Does It Smell? image 7 Axillary Hyperhidrosis: Why Does It Smell? image 8

The key to body odor management is “habits”!

Axillary odor and hyperhidrosis are not simply hygiene issues, but the result of skin structure and physiological characteristics, and small habits in daily life can go a long way toward maintaining a comfortable skin environment.

If the odor is severe or the yellow staining on clothes is significant, a more clear diagnosis may be needed.

Above all, I recommend starting with daily management. Thank you^^

Axillary Hyperhidrosis: Why Does It Smell? image 9 Axillary Hyperhidrosis: Why Does It Smell? image 10 Axillary Hyperhidrosis: Why Does It Smell? image 11 Axillary Hyperhidrosis: Why Does It Smell? image 12 Axillary Hyperhidrosis: Why Does It Smell? image 13 Axillary Hyperhidrosis: Why Does It Smell? image 14 Axillary Hyperhidrosis: Why Does It Smell? image 16 Axillary Hyperhidrosis: Why Does It Smell? image 17

#armpitodor #odorfromhyperhidrosis #causesofarmpitodor #whydoesarmpitsmell #hyperhidrosis

Axillary Hyperhidrosis: Why Does It Smell? image 15

Continue browsing

Keep exploring this clinic's public source trail

Return to the source archive for more translated posts, or open the Korean clinic profile to compare other public channels.