Is Botox Effective for Axillary Bromhidrosis? - 美容整形・美容外科｜船橋中央&青山セレスクリニック　美容整形・美容外科｜船橋中央&青山セレスクリニック

Axillary bromhidrosis refers to body odor resulting from sweat produced by specific sweat glands, particularly the apocrine glands. Let’s delve into the function of apocrine glands and explore Botox, a treatment option that has been gaining attention.

Difference between Eccrine and Apocrine

Glands Our bodies have two main types of sweat glands: eccrine and apocrine glands. They secrete eccrine sweat and apocrine sweat, respectively. Eccrine glands are found throughout the body and secrete sweat to regulate body temperature. Apocrine glands, on the other hand, are located in specific areas such as the armpits and groin, and become active during puberty. Both types of glands are controlled by the sympathetic nervous system, though they respond to different neurotransmitters. Eccrine glands are activated by acetylcholine, while apocrine glands respond to catecholamines.

What is Botox?

Botox is a product that primarily consists of botulinum toxin A, produced by the bacterium Clostridium botulinum. Botox works by inhibiting the release of neurotransmitters, particularly blocking the release of acetylcholine.

Understanding Catecholamines and Acetylcholine

Imagine participating in a relay race, passing a baton between teammates. When you pass the baton, you transfer momentum from your hand to your teammate’s. This act of passing the baton is analogous to how neurotransmitters work in neuronal communication. Acetylcholine, the neurotransmitter, is primarily used by neurons controlling eccrine glands. Botox disrupts this transmission, inhibiting eccrine gland activity. On the other hand, apocrine glands respond to a different neurotransmitter, catecholamines. Botox does not directly affect this transmission.

Application of Botox in Treating

Axillary Bromhidrosis Considering Botox’s mechanism of action, it is expected to suppress eccrine gland activity. Indeed, Botox is widely used for treating hyperhidrosis, with proven efficacy. However, since apocrine bromhidrosis is mainly caused by apocrine glands, which are controlled by catecholamines and not acetylcholine, Botox is not expected to have a direct inhibitory effect on these glands.

So, is Botox Ineffective for Axillary Bromhidrosis?

Apocrine sweat itself does not have an odor. The odor arises when N-acetyl-5-methyloornithine in the apocrine sweat, combined with fatty acids secreted by sebaceous glands, is broken down by resident bacteria (such as Corynebacterium) on moist skin. A moist environment encourages bacterial proliferation, intensifying the odor. By suppressing eccrine sweat with Botox, the skin’s moist environment improves, potentially reducing bacterial growth and subsequently alleviating the “axillary odor.”

Conclusion

While Botox is effective in suppressing eccrine gland activity and treating hyperhidrosis, it is not expected to have a direct effect on apocrine bromhidrosis. However, since sweating can contribute to odor, suppressing hyperhidrosis with Botox can have a beneficial effect, depending on the severity and cause of the axillary bromhidrosis. Thus, when considering Botox for axillary bromhidrosis treatment, it is crucial to consult with a specialist to ensure the selection of an appropriate treatment method.

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botox, body odor