A common fungal infection that causes small, discoloured patches of skin.
Pityriasis versicolor is caused by an overgrowth of yeast on the skin. It most often affects teens and young adults. The condition isn’t contagious.
Symptoms include patches of skin that are lighter or darker than the surrounding skin, often on the torso and shoulders.
A skin rash that sometimes begins as a large spot on the chest, abdomen or back, followed by a pattern of smaller lesions.
The cause of pityriasis rosea isn’t well understood, but it may be triggered by a viral infection.
The condition causes a widespread, minimally itchy, skin rash on the torso, upper legs and upper arms.