Medically reviewed by William Truswell, MD Tinea versicolor is a common skin infection caused by a fungus called Malassezia.

Instead, inverse pityriasis rosea affects the armpits or groin. This type of pityriasis ... the fungal infections tinea corporis and tinea versicolor, lichen planus, parapsoriasis, secondary ...

Tinea versicolor is yeast that causes flat ... it can also develop in areas such as the armpits, groin, under the breasts, buttocks, or belly button. Seborrheic dermatitis can appear on the ...