Trichomycosis axillaris: Difference between revisions
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{{Infobox medical condition | |||
| name = Trichomycosis axillaris | |||
| image = [[File:Trichomycosis-axillaris-armpit.jpg|left|thumb|Trichomycosis axillaris]] | |||
| caption = Trichomycosis axillaris affecting the armpit hair | |||
| synonyms = Trichobacteriosis axillaris | |||
| field = [[Dermatology]] | |||
| symptoms = Yellow, black, or red nodules on hair shafts | |||
| complications = [[Body odor]] | |||
| onset = Any age, more common in adults | |||
| duration = Chronic without treatment | |||
| causes = [[Corynebacterium]] species | |||
| risks = Poor hygiene, excessive sweating | |||
| diagnosis = Clinical examination | |||
| differential = [[Piedra (disease)]], [[Tinea versicolor]] | |||
| prevention = Good hygiene, regular washing | |||
| treatment = Shaving affected hair, topical [[antibiotics]] | |||
| medication = [[Clindamycin]], [[Erythromycin]] | |||
| frequency = Common in tropical climates | |||
}} | |||
{{Short description|Bacterial infection of the hair shafts in sweat gland-bearing areas}} | {{Short description|Bacterial infection of the hair shafts in sweat gland-bearing areas}} | ||
'''Trichomycosis axillaris''' is a superficial bacterial infection of the hair shafts in areas with [[apocrine sweat glands]], such as the [[armpits]] and [[groin]]. It is caused by bacteria of the genus ''[[Corynebacterium]]'', most commonly ''Corynebacterium tenuis''. | '''Trichomycosis axillaris''' is a superficial bacterial infection of the hair shafts in areas with [[apocrine sweat glands]], such as the [[armpits]] and [[groin]]. It is caused by bacteria of the genus ''[[Corynebacterium]]'', most commonly ''Corynebacterium tenuis''. | ||
==Signs and symptoms== | ==Signs and symptoms== | ||
Trichomycosis axillaris is characterized by the presence of yellow, black, or red nodules on the hair shafts. These nodules are composed of bacterial colonies and can cause the affected hair to become brittle. The condition is often asymptomatic, but some individuals may experience [[hyperhidrosis]] (excessive sweating) or [[bromhidrosis]] (foul-smelling sweat). | Trichomycosis axillaris is characterized by the presence of yellow, black, or red nodules on the hair shafts. These nodules are composed of bacterial colonies and can cause the affected hair to become brittle. The condition is often asymptomatic, but some individuals may experience [[hyperhidrosis]] (excessive sweating) or [[bromhidrosis]] (foul-smelling sweat). | ||
==Causes== | ==Causes== | ||
The condition is caused by the overgrowth of ''Corynebacterium'' bacteria, which thrive in warm, moist environments. Factors that may contribute to the development of trichomycosis axillaris include poor hygiene, excessive sweating, and wearing tight or non-breathable clothing. | The condition is caused by the overgrowth of ''Corynebacterium'' bacteria, which thrive in warm, moist environments. Factors that may contribute to the development of trichomycosis axillaris include poor hygiene, excessive sweating, and wearing tight or non-breathable clothing. | ||
==Diagnosis== | ==Diagnosis== | ||
Diagnosis is typically made based on the clinical appearance of the nodules on the hair shafts. A [[Wood's lamp]] examination may reveal fluorescence of the affected hairs. In some cases, a microscopic examination of the hair shafts may be performed to confirm the presence of bacterial colonies. | Diagnosis is typically made based on the clinical appearance of the nodules on the hair shafts. A [[Wood's lamp]] examination may reveal fluorescence of the affected hairs. In some cases, a microscopic examination of the hair shafts may be performed to confirm the presence of bacterial colonies. | ||
==Treatment== | ==Treatment== | ||
Treatment of trichomycosis axillaris involves improving personal hygiene and reducing moisture in the affected areas. Shaving the affected hair is often recommended to remove the bacterial colonies. Topical [[antibacterial]] agents, such as [[clindamycin]] or [[erythromycin]], may be prescribed to reduce bacterial load. In some cases, oral antibiotics may be necessary. | Treatment of trichomycosis axillaris involves improving personal hygiene and reducing moisture in the affected areas. Shaving the affected hair is often recommended to remove the bacterial colonies. Topical [[antibacterial]] agents, such as [[clindamycin]] or [[erythromycin]], may be prescribed to reduce bacterial load. In some cases, oral antibiotics may be necessary. | ||
==Prevention== | ==Prevention== | ||
Preventive measures include maintaining good hygiene, keeping the affected areas dry, and wearing loose-fitting, breathable clothing. Regular use of antibacterial soaps or washes may also help prevent recurrence. | Preventive measures include maintaining good hygiene, keeping the affected areas dry, and wearing loose-fitting, breathable clothing. Regular use of antibacterial soaps or washes may also help prevent recurrence. | ||
==See also== | |||
== | |||
* [[Corynebacterium]] | * [[Corynebacterium]] | ||
* [[Bacterial skin disease]] | * [[Bacterial skin disease]] | ||
* [[Hyperhidrosis]] | * [[Hyperhidrosis]] | ||
==References== | ==References== | ||
{{Reflist}} | {{Reflist}} | ||
[[Category:Bacterial diseases]] | [[Category:Bacterial diseases]] | ||
[[Category:Skin conditions resulting from physical factors]] | [[Category:Skin conditions resulting from physical factors]] | ||
[[Category:Conditions of the skin appendages]] | [[Category:Conditions of the skin appendages]] | ||
{{stub}} | |||
Latest revision as of 23:13, 6 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD medical weight loss NYC and sleep center NYC
| Trichomycosis axillaris | |
|---|---|
 | |
| Synonyms | Trichobacteriosis axillaris |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Yellow, black, or red nodules on hair shafts |
| Complications | Body odor |
| Onset | Any age, more common in adults |
| Duration | Chronic without treatment |
| Types | N/A |
| Causes | Corynebacterium species |
| Risks | Poor hygiene, excessive sweating |
| Diagnosis | Clinical examination |
| Differential diagnosis | Piedra (disease), Tinea versicolor |
| Prevention | Good hygiene, regular washing |
| Treatment | Shaving affected hair, topical antibiotics |
| Medication | Clindamycin, Erythromycin |
| Prognosis | N/A |
| Frequency | Common in tropical climates |
| Deaths | N/A |
Bacterial infection of the hair shafts in sweat gland-bearing areas
Trichomycosis axillaris is a superficial bacterial infection of the hair shafts in areas with apocrine sweat glands, such as the armpits and groin. It is caused by bacteria of the genus Corynebacterium, most commonly Corynebacterium tenuis.
Signs and symptoms[edit]
Trichomycosis axillaris is characterized by the presence of yellow, black, or red nodules on the hair shafts. These nodules are composed of bacterial colonies and can cause the affected hair to become brittle. The condition is often asymptomatic, but some individuals may experience hyperhidrosis (excessive sweating) or bromhidrosis (foul-smelling sweat).
Causes[edit]
The condition is caused by the overgrowth of Corynebacterium bacteria, which thrive in warm, moist environments. Factors that may contribute to the development of trichomycosis axillaris include poor hygiene, excessive sweating, and wearing tight or non-breathable clothing.
Diagnosis[edit]
Diagnosis is typically made based on the clinical appearance of the nodules on the hair shafts. A Wood's lamp examination may reveal fluorescence of the affected hairs. In some cases, a microscopic examination of the hair shafts may be performed to confirm the presence of bacterial colonies.
Treatment[edit]
Treatment of trichomycosis axillaris involves improving personal hygiene and reducing moisture in the affected areas. Shaving the affected hair is often recommended to remove the bacterial colonies. Topical antibacterial agents, such as clindamycin or erythromycin, may be prescribed to reduce bacterial load. In some cases, oral antibiotics may be necessary.
Prevention[edit]
Preventive measures include maintaining good hygiene, keeping the affected areas dry, and wearing loose-fitting, breathable clothing. Regular use of antibacterial soaps or washes may also help prevent recurrence.
See also[edit]
References[edit]
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