Review Of Pictures Of Infected Hair Follicle On Scalp References. Causes include ringworm, folliculitis, and impetigo. Web most commonly, folliculitis is caused by bacterial infection of the superficial or deep hair follicle.

Closed up of ringworm (tinea) on head of asian man (dermatitis) woman with serious problem of dandruff. If early treatments don't clear up your infection, your health care provider may run some tests. It's often caused by an infection with bacteria.