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Ringworm of the scalp or beard often looks like round, bald patches. Most often, the infection spreads outward while the inside of the circle clears up. This makes the infection look like a ring. The name "ringworm" comes from this pattern.
But ringworm of the scalp or beard doesn't always make a ring pattern. Sometimes it just looks like dandruff. In some cases the hair breaks off, leaving stubble that looks like black dots. Sometimes people get ringworm but do not have any symptoms. Read more about ringworm.