Related conditions Razor burn is a less serious condition caused by shaving, characterized by mild to moderate redness and irritation on the surface of the skin. Unlike<unk> , it is usually transient and there is no infection involved. There is also a condition called folliculitis<unk> . The difference between the two is the cause of the inflammation in the hair follicles. Where folliculitis<unk>  is caused by viral or bacterial infections,<unk>  is created by irritation from shaving and ingrown hairs.<unk>  nuchae, a related condition, occurs on the back of the neck, often along the posterior hairline, when curved hairs are cut short and allowed to grow back into the skin. Left untreated, this can develop into acne keloidalis nuchae, a condition in which hard, dark keloid-like bumps form on the neck. Both occur frequently in black men in the military. Here it is so common that services often have known protocols for management.
Pseudofolliculitis barbae
Folliculitis nares perforans
Tinea imbricata
Ichthyosis bullosa of Siemens
Neutrophilic eccrine hidradenitis
Steatocystoma simplex
Trichostasis spinulosa
Lichen myxedematosus