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GlossaryBacterial Alopecia

hair loss caused by bacterial scalp infections

Bacterial Alopecia refers to hair loss caused by bacterial infections of the scalp. These infections can damage hair follicles, leading to inflammation and subsequent hair shedding. Common bacteria involved include Staphylococcus aureus, which can cause folliculitis, an infection of the hair follicles. Treatment typically involves antibiotics to eliminate the bacterial infection and measures to promote scalp health.

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Research

5 / 1000+ results

research Immunization and Bacterial Pathogens in the Oropharynx as Risk Factors for Alopecia Areata

3 citations , January 2010 in “Actas Dermo-Sifiliográficas”

Immunization and throat bacteria may increase the risk of a hair loss condition called alopecia areata.

Scalp Bacterial Microbiota Dysbiosis in Androgenetic Alopecia: Community Structure, Functional Profiles, and Associations with Lifestyle Factors

research Scalp Bacterial Microbiota Dysbiosis in Androgenetic Alopecia: Community Structure, Functional Profiles, and Associations with Lifestyle Factors

June 2026 in “medRxiv”

Unhealthy lifestyle habits may worsen hair loss by affecting scalp bacteria.

CD27 and IL-35 as Diagnostic Biomarkers in Alopecia Areata: First Evidence of Association with Pathogenic Scalp Bacterial Infections

research CD27 and IL-35 as diagnostic biomarkers in alopecia areata: First evidence of association with pathogenic scalp bacterial infections

December 2025 in “Babcock University Medical Journal”

CD27 and IL-35 can help diagnose alopecia areata linked to bacterial infections.

research Scalp bacterial shift in Alopecia areata

48 citations , April 2019 in “PloS one”

Alopecia areata patients have more Propionibacterium acnes and less Staphylococcus epidermidis on their scalps.

research Scalp Bacterial Profile and Antibiotics Susceptibility Pattern in Patients With Primary Cicatricial Alopecia

January 2025 in “Annals of Dermatology”

PCA patients have more harmful bacteria and antibiotic resistance, needing specific testing for treatment.

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Community Join

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community Androgenetic alopecia is a skin disease: DHT-mediated skin disorders

in Research/Science 64 upvotes 2 years ago

Dihydrotestosterone (DHT) impacts various skin conditions, including Androgenetic alopecia and seborrheic dermatitis, by causing overactivity in sebaceous glands. Topical medications Tacrolimus and Clobetasol can reduce these inflammatory conditions, and treatments like RU58841, Minoxidil, and Finasteride may also be beneficial.

community Bruteforcing alopecia or the new advent of science progress

in Research/Science 21 upvotes 1 year ago

Combining therapies like scyllo-inositol, alpha-ketoglutarate, and autophagy-inducing supplements may enhance hair growth and prevent hair loss. Reporting individual results can accelerate progress in hair loss treatments.

community i think i have finally found my retrogade alopecia triggers

in Finasteride/Dutasteride 11 upvotes 2 years ago

The user experienced severe scalp itching and hair loss while on dutasteride, which they linked to caffeine and masturbation. They plan to cut out both to see if their hair density improves.

community Pattern hair loss could be due to gut bacteria

49 upvotes 6 years ago

Feeding bacteria-free mice with Lactobacillus murinus worsened hair loss, but a regular diet with biotin stopped it. The conversation suggests gut bacteria and diet may influence hair loss, with some skepticism and discussion about other factors like DHT and genetics.

community L. reuteri (probiotic for Androgenic Alopecia)

in Finasteride/Dutasteride 34 upvotes 4 months ago

L. reuteri, a probiotic, is being explored for its potential benefits in treating androgenic alopecia, possibly enhancing finasteride's effects and reducing inflammation. The user combines this with finasteride, oral minoxidil, and other supplements, noting some improvement in hair loss.

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