Ringworm is highly contagious and can spread from infected person and even pet animals. The symptoms usually develop between 1-2 weeks post infection and generally include itchy skin, ring-shaped rash and hair loss. What’s itchy, scaly, round, and contagious? Ringworm, of course. Find out what it is, what causes it, what the symptoms are, and how it’s treated. Ringworm, or tinea, is a common fungal skin infection. It causes symptoms like itchy, circular skin rashes that can show up on any part of your body. Ringworm is a fungal infection that causes a ring shape on the skin and other symptoms. Learn how to recognize, treat, and prevent ringworm in different parts of the body.