Ringworm is a skin and scalp disease caused by several different kinds of fungi. Ringworms on the scalp usually makes a bald patch of scaly skin. People with ringworms on other parts of their skin can have a reddish, ring-shaped, that may be itchy.
''Tinea capitis is the name used for infection of the scalp with a dermatophyte fungus ( ringworm). Although common in children, tinea capitis is less frequently seen in adults.'' In this website you will find info on types of tinea capitis infections.