What would cause small itchy bumps in a circular pattern on your body?

Ringworm

Ringworm, also known as tinea, is a common skin infection caused by a type of fungus called dermatophyte. It can affect any part of the body, but it most commonly appears on the scalp, face, neck, arms, and legs.

Ringworm is characterised by itchy, red, raised, circular patches of skin with a clear centre. The patches can be small or large, and they may spread or become more numerous over time.

Ringworm is contagious and can be spread through direct contact with an infected person or animal, or by contact with contaminated objects. It is important to see a doctor if you think you may have ringworm, as it can be treated with antifungal medication.