Anaerobic axillary abscess.

Practice Guidelines for the Diagnosis and Management of Skin and Soft-Tissue Infections

“…They are usually painful, tender, and fluctuant red nodules, often surmounted by a pustule and surrounded by a rim of erythematous swelling. Cutaneous abscesses are typically polymicrobial, containing bacteria that constitute the normal regional skin flora, often combined with organisms from adjacent mucous membranes [24][25][26][27][28][29][30]. S. aureus is present, usually as a single pathogen, in only ∼25% of cutaneous abscesses overall.…”

Hidradenitis Suppurativa

“…milleri, Bilophila wadsworthia, and anaerobes. 35,[77][78][79][80][81][82] The species have been isolated from a wide range of lesions at many different stages and definitions of hidradenitis. Frequently, the different species of bacteria have also been found in only a few cases as a G.B.E.…”

Hidradenitis suppurativa: A comprehensive review

“…4,11,[59][60][61][62] Gram-negative bacteria, such as Escherichia coli, Klebsiella, and Proteus, may be more common in perineal HS. 30,63 Chlamydia trachomatis was demonstrated serologically in 6 of 7 patients with perineal HS but was absent in the pus of examined lesions.…”

“…In older studies, bacteria were collected from the surfaces of HS lesions. 11,[59][60][61] Samples were prone to contamination with skin flora.…”