What are the differences between underarm odor and bromhidrosis?

Generally speaking, the differences between underarm odor and bromhidrosis (osmidrosis) are mainly reflected in the causes, odor characteristics, affected areas, affected populations and ages, and treatment methods. The specific analysis is as follows:

1. Causes

Underarm odor is usually caused by the smell of sweat, especially after intense exercise or when the underarm area is not adequately cleaned, leading to odor under the armpits. This condition usually lasts for a short duration and tends to recur easily. Additionally, poor habits, hyperhidrosis, bromhidrosis, malnutrition, and other factors can also cause underarm odor. Bromhidrosis is primarily caused by congenital factors, such as heredity. It results from excessive secretion by the apocrine sweat glands, where the secretions are decomposed by bacteria on the skin, producing a foul smell that persists and can be detected even from a distance.

2. Odor Characteristics

Underarm odor typically presents as an acidic or mild sweat smell, which may not be noticeable to others nearby unless they are in close proximity. Bromhidrosis emits a distinct, pungent odor that can be easily detected by others nearby, and the smell tends to be more unpleasant and persistent.

3. Affected Areas

Underarm odor primarily occurs in the armpit area. Although bromhidrosis also mainly affects the armpits, severe cases may extend to other areas such as the genital region.

4. Affected Populations and Age Groups

Underarm odor can occur in individuals of any age, especially those who neglect personal hygiene or frequently engage in intense physical activity. While bromhidrosis can also occur at any age, it is more commonly seen in individuals with a family history of the condition, and symptoms typically begin to appear or worsen after puberty.

5. Treatment Methods

In most cases, underarm odor does not require special treatment and can be alleviated by improving personal hygiene habits, such as showering frequently, changing clothes regularly, and using antimicrobial or antiperspirant products. The treatment of bromhidrosis depends on the severity of the condition. For mild cases, symptoms can be improved by frequently changing clothes, showering regularly, and using antimicrobial agents, antiperspirants, deodorants, and other medications. For more severe cases, treatment may require botulinum toxin injections, laser therapy, or surgical intervention under the guidance of a physician.

Therefore, when underarm odor occurs, diagnosis and treatment should be carried out according to the specific circumstances.