Prurigo pigmentosa is a rare skin condition of unknown cause, characterized by the sudden onset of
erythematous
Erythema (from the Greek , meaning red) is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. It occurs with any skin injury, infection, or inflammation. Examples of erythema not assoc ...
papules that leave a reticulated hyperpigmentation when they heal.
The condition has been associated with a strict
ketogenic diet in case reports in the medical literature. It was first reported by
Masaharu Nagashima in 1978. Research has shown that it may be caused by gut bacteria
dysbiosis
Dysbiosis (also called dysbacteriosis) is characterized by a disruption to the microbiome resulting in an imbalance in the microbiota, changes in their functional composition and metabolic activities, or a shift in their local distribution. For ex ...
as a result of ketosis.
See also
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Pruritus
*
Skin lesion
*
Masaharu Nagashima
References
External links
Pruritic skin conditions
Rare diseases
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