Pityriasis rosea and ringworm (tinea corporis) are both skin conditions that cause round, discolored patches. Ringworm is contagious through skin-to-skin contact, while pityriasis rosea is not. Both ...

Ringworm is a highly contagious fungal infection that affects the skin, scalp, and nails. Despite its misleading name, ringworm is not caused by a worm but by a group of fungi called dermatophytes. It ...