The cause of<unk>  is unknown. A variety of microorganisms have been implicated, including the mite Demodex, the yeast Pityrosporum, and bacteria. An autoimmune process has what is this also been investigated.
Eosinophilic folliculitis
Gram-negative folliculitis
Tufted folliculitis
Steroid folliculitis
Perforating folliculitis
Fungal folliculitis
Hot tub folliculitis
Superficial pustular folliculitis