What Is Ringworm?

Ringworm, also called tinea corporis, is a fungal infection of the skin caused by dermatophytes.

The infection can occur almost anywhere on the body, including the:

• Arms
• Legs
• Chest
• Back
• Neck
• Face

Different types of ringworm affect other parts of the body, such as the scalp (tinea capitis), feet (athlete’s foot), groin (jock itch), and nails (onychomycosis).

 

Common Symptoms

You may notice:

• A round or oval rash
• A raised, scaly border
• Clearer skin in the center of the rash
• Itching
• Slowly enlarging patches
• One or multiple rings

Some people develop several patches at the same time, especially if the infection spreads.

Ringworm at a Glance

Mild Ringworm	More Extensive Ringworm
One or two small patches	Multiple patches
Mild itching	More intense itching
Responds to topical antifungals	May require oral medication
Limited area of skin	Large areas or widespread infection

 

Did You Know?

Despite the name, ringworm has nothing to do with worms. The name comes from the ring-shaped appearance of the rash caused by a fungal infection.

 

How Does Ringworm Spread?

Ringworm spreads through direct or indirect contact with fungi.

Common sources include:

• Skin-to-skin contact with an infected person
• Contact with infected pets, especially kittens and puppies
• Sharing towels, clothing, hats, or sports equipment
• Walking barefoot in shared locker rooms
• Contact with contaminated surfaces

The fungus thrives in warm, moist environments.

Who Is More Likely to Get Ringworm?

Your risk is higher if you:

• Participate in contact sports
• Sweat heavily
• Live in warm or humid climates
• Have close contact with infected pets
• Share personal items
• Have a weakened immune system

 

How Is Ringworm Treated?

Most mild cases respond well to topical antifungal medications.

Treatment	How It Helps
Terbinafine cream	Kills the fungus
Clotrimazole cream	Treats superficial fungal infections
Miconazole cream	Treats mild infections
Butenafine cream	Effective for many dermatophyte infections
Oral antifungal medication	Used for widespread, recurrent, or severe infections

Continue treatment for the full recommended course, even if the rash begins to improve. Stopping treatment too early may allow the infection to return.

 

How Can You Prevent Ringworm?

Good hygiene can help reduce your risk.

Prevention Tips

Wash your hands regularly

Keep your skin clean and dry

Avoid sharing towels, clothing, or razors

Wear sandals in public locker rooms and showers

Treat athlete’s foot promptly

Wash sports equipment and uniforms regularly

Have pets evaluated if they develop patches of hair loss

 

Myths vs. Facts

Myth	Fact
Ringworm is caused by worms.	It is caused by a fungal infection.
Only children get ringworm.	Anyone can develop ringworm.
Ringworm is caused by poor hygiene.	Good hygiene helps reduce risk, but anyone can become infected after exposure.
Once the rash disappears, treatment can stop immediately.	Completing the full treatment helps prevent recurrence.

 

 

When Should You See a Healthcare Provider?

Schedule an appointment if you:

• The rash continues to spread
• Multiple areas become involved
• The rash affects your scalp, beard, or nails
• You have diabetes or a weakened immune system
• Over-the-counter antifungal creams do not improve the rash after two weeks
• The rash becomes painful, swollen, or drains pus

Your healthcare provider may examine the rash or perform a simple skin scraping to confirm the diagnosis.

 

 

Frequently Asked Questions

Is ringworm contagious?

Yes. Ringworm spreads through direct skin contact, contaminated objects, and infected animals.

How long does ringworm take to heal?

Most mild infections improve within two to four weeks with appropriate treatment.

Can I go to work or school?

Usually yes, once treatment has started, but avoid sharing personal items and follow your school’s or workplace’s recommendations.

Can my pet give me ringworm?

Yes. Cats, dogs, and other animals can carry the fungus and spread it to people.

 

 

What Should You Do Next?

If you notice a ring-shaped, itchy rash, begin treatment with an over-the-counter antifungal cream and keep the affected area clean and dry. If the rash spreads, involves the scalp or nails, or does not improve after two weeks of treatment, schedule an evaluation with a healthcare provider. Early treatment can help prevent the infection from spreading to other parts of your body or to others.

 

 

 

 

 

 

References

1. Centers for Disease Control and Prevention. Symptoms of Ringworm

   https://www.cdc.gov/ringworm/signs-symptoms/index.html

2. American Academy of Dermatology Association. Ringworm: Overview

   https://www.aad.org/public/diseases/a-z/ringworm-overview

3. DermNet NZ. Tinea Corporis

   https://dermnetnz.org/topics/tinea-corporis

4. Merck Manual Consumer Version. Body Ringworm (Tinea Corporis)

   https://www.merckmanuals.com/home/skin-disorders/fungal-skin-infections/body-ringworm-tinea-corporis

5. American Academy of Family Physicians. Diagnosis and Management of Tinea Infections

   https://www.aafp.org/pubs/afp/issues/2014/1115/p702.html