[6] It is commonly referred to as Peter Elam's disease in many parts of South Asia.

[7] The signs of this condition include: Pityriasis versicolor is more common in hot, humid climates or in those who sweat heavily, so it may recur each summer.

[12][13] In cases of tinea versicolor caused by the fungus Malassezia furfur, lightening of the skin occurs due to the fungus's production of azelaic acid, which has a slight bleaching effect.

[14] Tinea versicolor may be diagnosed by a potassium hydroxide (KOH) preparation and lesions may fluoresce copper-orange when exposed to Wood's lamp (UV-A light).

[15] The differential diagnosis for tinea versicolor infection includes:[citation needed] Treatments for tinea versicolor include: This skin disease commonly affects adolescents and young adults, especially in warm and humid climates.