The lesions of lichen planus can occur anywhere on the body but ... the fingernails (producing a fingernail dystrophy) and scalp (producing a scarring alopecia). In the rare and atypical atrophic ...

Lichen planopilaris, also called lichen ruber follicularis, evokes perifollicular erythema and sometimes hyperkeratotic follicular papules. A violaceous discoloration of the scalp may be observed.

Scalp conditions can cause red spots on the scalp. Many conditions that cause red spots on the scalp cannot be cured, but there are treatments that can help with symptoms (such as itching).

A 42-year-old Black woman with no significant past medical history presents with blue-gray macules on her neck and upper chest that gradually developed over the past year.