What Is Ringworm of the Scalp? A Plain-Language Guide to the Contagious Rash That Causes Bald Patches in Children
Updated: 3 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer
Ringworm of the scalp, or tinea capitis, is a contagious fungal infection that usually causes itchy, scaly, bald patches on the head, most commonly in toddlers and school-age children. [1] It spreads through contact with infected people, animals or objects. [1] It requires prescription antifungal medicine taken by mouth for six weeks or more. [2] With treatment, hair usually regrows without scarring. [2]
What the research says
Several oral medicines work about as well as griseofulvin, but the best choice can depend on the fungus. A Cochrane review of 25 trials with 4,449 children found that terbinafine for four weeks and griseofulvin for eight weeks gave similar complete cure rates in Trichophyton infections (84.2% vs 79.0%; risk ratio 1.06, 95% CI 0.98 to 1.15). In children infected with T. tonsurans, terbinafine did better than griseofulvin (52.1% vs 35.4%; risk ratio 1.47, 95% CI 1.22 to 1.77), while in Microsporum infections griseofulvin did better (50.9% vs 34.7% complete cure; risk ratio for terbinafine 0.68, 95% CI 0.53 to 0.86). Side effects were mild and reversible, and severe ones were rare (0.6% in both groups). (Chen et al., Cochrane Database Syst Rev, 2016) [4]
Confirming the diagnosis and finishing treatment both matter. A 2024 pediatric dermatology review notes that accurate diagnosis relies on clinical evaluation, microscopic examination and fungal culture, and that untreated or poorly treated tinea capitis can lead to chronic infection, social stigma and psychological distress in children. It also reports that terbinafine shows superior mycological cure rates, particularly for Trichophyton species. (Gupta et al., Pediatr Dermatol, 2024) [5]
What Is Ringworm of the Scalp, in Plain Language?
Ringworm of the scalp (tinea capitis, pronounced TIN-ee-uh KAP-uh-tis) is a rash caused by a fungal infection. It usually causes itchy, scaly, bald patches on the head. [1]
Despite the name, no worm is involved. Ringworm gets its name because of its circular appearance. [1] [3]
Ringworm of the scalp appears as round patches where the hair has broken off at or just above the scalp. These bald-looking patches slowly grow larger. [1]
A key fact: ringworm of the scalp is a contagious infection, and it's most common in toddlers and school-age children. [1] Tinea capitis is related to athlete's foot (tinea pedis), jock itch (tinea cruris) and ringworm of the body (tinea corporis) — the same family of fungi in different locations. [1] [3]
Medication taken by mouth can kill the fungus that causes ringworm of the scalp. [1] Medicated shampoos may help keep a person from spreading the infection to others. [1]
What Does Ringworm of the Scalp Look Like?
The pattern of broken hair is what makes this infection distinctive. Up close, the scalp can look scaly and silvery with patches of broken hair. You may also see small black dots if the hair has broken off right at the scalp. [1]
Sign or symptom | What you may see |
Round patches | One or more round, scaly or inflamed patches where the hair has broken off at or near the scalp [1] |
Black dots | Patches that slowly get bigger and have small, black dots where the hair has broken off [1] |
Fragile hair | Brittle or fragile hair that can be easily broken or pulled out [1] |
Soreness | Tender or painful areas on the scalp [1] |
Close-up view | The scalp can look scaly and silvery with patches of broken hair |
How Does Ringworm of the Scalp Start?
Ringworm of the scalp is caused by a common fungus. The fungus attacks the outer layer of skin on the scalp and the hair. This causes those hairs to break. [1]
The infection can spread in three ways:
Route | How it happens |
Human to human | |
Animal to human | You can contract ringworm by touching an animal with ringworm. It can spread while petting or grooming dogs or cats with ringworm. Ringworm is fairly common in kittens, puppies, cows, goats, pigs and horses. [1] |
Object to human | It's possible for ringworm to spread by contact with objects or surfaces that an infected person or animal has recently touched, including clothing, towels, bedding, combs and brushes. [1] |
Who Is at Higher Risk?
Three factors raise the odds of ringworm of the scalp:
Risk factor | Why it matters |
Age | Ringworm of the scalp is most common in toddlers and school-age children. |
Exposure to other children | Outbreaks are common in schools and child care centers where the infection easily spreads with close contact. [1] |
Exposure to pets | A pet, such as a cat or a dog, can have the infection without showing any signs. Children can get the infection by touching the animal. [1] |
When Should You See a Doctor?
Several conditions affecting the scalp may have a similar appearance. [1] See your child's doctor if your child has any hair loss, scaling or itchiness of the scalp, or other unusual appearance of the scalp.
It's important to get an accurate diagnosis and prompt treatment with prescription medicine. Nonprescription creams, lotions and powders won't get rid of ringworm of the scalp. [1]
Can Ringworm of the Scalp Cause Complications?
Some people with ringworm of the scalp may develop a severe inflammation called kerion (pronounced KEER-ee-on). Kerion appears as soft, raised swellings that drain pus and cause thick, yellow crusting on the scalp. [1]
With kerion, the hair falls out or can be easily pulled out. The condition may be caused by an overly vigorous reaction to the fungus and can lead to scarring and permanent hair loss. [1]
How Is Ringworm of the Scalp Diagnosed?
Your doctor will likely be able to diagnose ringworm of the scalp by looking at the affected skin and asking certain questions. [2]
To confirm the diagnosis, your doctor may take a sample of hair or skin to be tested in a lab. Testing a sample of hair or skin can show if a fungus is present. [2]
How Is Ringworm of the Scalp Treated?
Treatment for ringworm of the scalp requires a prescription-strength antifungal medication taken by mouth. [2] [4]
Treatment step | What it involves |
First-choice oral medication | The first-choice medication is usually griseofulvin (Gris-Peg). [2] |
Alternative oral medications | |
How long | Your child might need to take one of these medications for six weeks or more — until hair regrows. [2] |
Medicated shampoo | Your doctor might recommend washing your child's hair with a prescription-strength medicated shampoo. The shampoo removes fungus spores and helps prevent spreading the infection to others or to other areas of the body. [2] |
No shaving needed | There is no need to shave the head or cut the hair as part of the treatment. [2] |
Outlook | Typically, with successful treatment, the bald spots will grow hair again and the skin will heal without scarring. [2] |
How Can You Prevent Ringworm of the Scalp?
Ringworm of the scalp is difficult to prevent. The fungus that causes it is common, and the condition is contagious even before symptoms appear. [1] These steps can reduce the risk:
Prevention step | How it helps |
Educate yourself and others | Be aware of the risk of ringworm from infected people or pets. Tell children about ringworm, what to watch for and how to avoid the infection. [1] |
Shampoo regularly | Wash your child's scalp regularly, especially after haircuts. Some scalp conditioning products, such as coconut oil and pomades with selenium, might help prevent ringworm of the scalp. [1] |
Keep skin clean and dry | Be sure children wash their hands, including after playing with pets. Keep shared areas clean, especially in schools, child care centers, gyms and locker rooms. [1] |
Avoid infected animals | The infection often looks like a patch of skin where fur is missing. If you have pets or other animals that commonly carry ringworm, ask your veterinarian to check them for the infection. [1] |
Avoid sharing personal items |
How Should You Prepare for Your Appointment?
If your child has a condition affecting the scalp, you'll likely start by seeing your family doctor or child's pediatrician. You may be referred to a skin specialist (dermatologist). [2]
What Questions Will Your Doctor Ask?
Your doctor is likely to ask you a number of questions, such as:
Doctor's question | Why it matters |
When did you first notice symptoms? | Dates the onset of the scalp changes |
What did the scalp look like when symptoms first appeared? | Helps match the pattern to ringworm |
Is the rash painful or itchy? | Confirms typical scalp ringworm symptoms |
What, if anything, makes the condition better or worse? | Points to aggravating or soothing factors |
Do you have any pets at home, or has your child been around farm animals? | Pets and farm animals can carry the fungus |
Does another family member or a pet already have ringworm? | Points to the likely source |
Do you know of any cases of ringworm in your child's school? | Outbreaks are common in schools |
What Questions Can You Ask Your Doctor?
Questions you might be prepared to ask your doctor include:
Your question | What it tells you |
If this is ringworm, what can we do to prevent the infection from spreading? | Concrete steps to protect household members |
What hair care routines do you recommend while the condition heals? | Daily care during treatment |
When can my child return to school? | School return timing |
Should I schedule a follow-up appointment for my child? | Whether check-ins are needed during the weeks of medication |
Should I make appointments for my other children even if they aren't showing signs or symptoms right now? | Whether siblings need to be checked |
The Bottom Line
Ringworm of the scalp is the one type of ringworm where the off-the-shelf fixes don't work — pharmacy creams, lotions and powders simply can't get rid of it. What it takes is a doctor's visit, because treatment requires prescription-strength antifungal medication taken by mouth, usually griseofulvin or an alternative like terbinafine or itraconazole, for six weeks or more. The telltale pattern is round, scaly, bald patches where the hair has broken off, often with tiny black dots marking where the hairs snapped. Toddlers and school-age children carry the highest risk, with close contact at schools and silent infections in pets as the usual sources. The outlook is encouraging: treated early, the bald spots grow hair again and the skin heals without scarring — and there's never a need to shave the head.
Take the Next Step
If your child has any hair loss, scaling, itchiness, or an unusual appearance on the scalp, see your child's doctor — several scalp conditions can look similar, and an accurate diagnosis matters. Don't try to treat it with over-the-counter creams, lotions or powders; they won't get rid of ringworm of the scalp. And if a pet or a classmate has ringworm, mention it at the appointment, and ask whether siblings should be checked even if they aren't showing symptoms yet.
Frequently Asked Questions
Is ringworm of the scalp actually caused by a worm?
No — no worm is involved. Ringworm of the scalp (tinea capitis) is a rash caused by a fungal infection. It gets its name because of its circular appearance.
What does ringworm of the scalp look like?
Ringworm of the scalp appears as round patches where the hair has broken off at or just above the scalp, and the bald-looking patches slowly grow larger. The scalp can look scaly and silvery with patches of broken hair, and you may see small black dots if the hair has broken off right at the scalp. Hair may become brittle and easily broken or pulled out, and areas of the scalp may be tender or painful.
Who gets ringworm of the scalp most often?
Ringworm of the scalp is a contagious infection most common in toddlers and school-age children. Outbreaks are common in schools and child care centers where the infection easily spreads with close contact.
How does it spread?
Through direct skin-to-skin contact with an infected person, by touching an animal with ringworm (fairly common in kittens, puppies, cows, goats, pigs and horses), or by contact with objects an infected person or animal has touched — clothing, towels, bedding, combs and brushes. A pet such as a cat or dog can carry the infection without showing any signs.
Can over-the-counter creams treat it?
No. Nonprescription creams, lotions and powders won't get rid of ringworm of the scalp. Treatment requires a prescription-strength antifungal medication taken by mouth.
How is it treated?
With an oral prescription-strength antifungal — usually griseofulvin (Gris-Peg) as the first choice, or alternatives such as terbinafine and itraconazole (Sporanox, Tolsura) if griseofulvin isn't working or your child is allergic to it. Children might need the medication for six weeks or more, until hair regrows. Your doctor might also recommend a prescription-strength medicated shampoo, which removes fungus spores and helps prevent spreading the infection. There is no need to shave or cut the hair.
What is the outlook?
Typically, with successful treatment, the bald spots will grow hair again and the skin will heal without scarring.
Are there complications to watch for?
Some people may develop a severe inflammation called kerion — soft, raised swellings that drain pus and cause thick, yellow crusting on the scalp. With kerion, the hair falls out or can be easily pulled out, and the condition can lead to scarring and permanent hair loss. See your child's doctor promptly if the scalp looks painful, swollen, pus-filled or heavily crusted.
How can I prevent it?
Ringworm of the scalp is difficult to prevent because the fungus is common and contagious before symptoms appear. You can reduce risk by washing your child's scalp regularly (especially after haircuts), keeping hands and shared areas clean, not sharing clothing, towels, hairbrushes or sports gear, educating children about ringworm, and having pets with fur-free patches checked by a veterinarian. Some scalp conditioning products, such as coconut oil and pomades with selenium, might also help.
Related Reading
References
Mayo Clinic Staff. Ringworm (scalp): Symptoms and causes. Mayo Clinic. Last updated January 22, 2022. Accessed October 14, 2026. https://www.mayoclinic.org/diseases-conditions/ringworm-scalp/symptoms-causes/syc-20354918
Mayo Clinic Staff. Ringworm (scalp): Diagnosis and treatment. Mayo Clinic. Last updated April 18, 2025. Accessed October 14, 2026. https://www.mayoclinic.org/diseases-conditions/ringworm-scalp/diagnosis-treatment/drc-20354924
Centers for Disease Control and Prevention. Ringworm basics. CDC. Last reviewed January 6, 2026. Accessed October 14, 2026. https://www.cdc.gov/ringworm/about/index.html
Chen X, Jiang X, Yang M, et al. Systemic antifungal therapy for tinea capitis in children. Cochrane Database Syst Rev. 2016;(5):CD004685. PMID: 27169520. https://doi.org/10.1002/14651858.CD004685.pub3
Gupta AK, Polla Ravi S, Wang T, et al. An update on tinea capitis in children. Pediatr Dermatol. 2024;41(6):1030-1039. PMID: 39113245. https://doi.org/10.1111/pde.15708
Disclaimer: This guide is for general information only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health provider with any questions about a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read here.
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