Topic Overview
Is this topic for you?
This topic is about ringworm of the scalp or beard. For
information about ringworm of the skin, see the topic
Ringworm of the Skin. For information about other
fungal infections, see the topics
Athlete's Foot,
Diaper Rash, and
Fungal Nail Infections.
What is ringworm of the scalp or beard?
Ringworm is an infection on your skin, hair, or nails. It is
caused by a
fungus. Ringworm of the scalp occurs in children and
adults all over the world. It is most common in young children. Ringworm of the
beard is not common.
What causes ringworm of the scalp or beard?
Ringworm is not caused by a worm. Ringworm
infections are caused by a fungus. The kinds of fungi (plural of fungus) that
cause ringworm live and spread on the top layer of the skin and on the hair.
Ringworm is contagious. It spreads when you come into close
contact with a person or animal that has it. It can also spread when you share
hats, combs, brushes, towels, clothing, and other items. Children get ringworm
more often than adults.
If an adult gets ringworm, he or she will most likely become a
carrier of the ringworm fungus. Carriers can pass ringworm on to others but do
not have symptoms of the disease.
You can also get ringworm by touching an infected dog or cat,
although this form of ringworm is rare.
What does ringworm of the scalp or beard look like?
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
In the most severe cases, the infected area is swollen, red,
crusty, and painful, with small bumps that look like blisters.
Ringworm is contagious, meaning it can spread from one person to
another easily. If you or someone in your family has the symptoms listed above,
it is important to see your doctor.
How is ringworm of the scalp or beard diagnosed?
If you have a ring-shaped rash, you very likely have ringworm.
Your doctor will be able to tell for sure. He or she will probably look at a
hair or skin sample under a microscope to check for the ringworm fungus. You
may have other tests. But most of the time, none are needed.
How is it treated?
Ringworm of the scalp or beard is easy to treat. Your doctor will
prescribe pills that will kill the fungus. And you can use special shampoo to
keep ringworm from spreading to others.
Ringworm can come back, so be sure to throw away your combs and
brushes and buy new ones that won't spread the infection. Try to keep your skin
clean and dry. Don't share hats, combs, or brushes. If you treat ringworm
early, the hair in the bald spots will probably grow back. If you don't treat
it, the bald spots could be permanent.
A child who has ringworm can still go to school, as long as he or
she is taking pills to kill the fungus. You do not need to shave your child’s
head.
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