Intertrigo: Causes, Symptoms, and Effective Treatment Strategies
Updated: 2 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer: What Is Intertrigo?
Intertrigo is inflammation of the skin folds caused by friction, heat, and trapped moisture. [1] [3] It appears in areas like the armpits, beneath the breasts, or in the groin. [1] While it begins as irritation, the warm, moist environment of skin folds often leads to overgrowth of yeast (Candida) or bacteria, resulting in a more severe rash, pain, and potential infection. [1]
What the research says
Intertrigo is common in older and care-dependent adults. A secondary analysis of four Dutch prevalence studies (40,340 adults) found intertrigo in 9.6% of people receiving home care (95% CI 8.6%-10.6%), 6.7% in aged care facilities and 2% in hospitals. High body mass index, diabetes and needing help with hygiene and dressing were strongly linked to intertrigo in all three settings (Kottner et al., International Journal of Nursing Studies, 2020 [2]).
Experts agree on the approach, but the evidence behind it is weak. A scoping review of 55 articles found consensus on four steps: identify and reduce predisposing factors, use a structured skin-fold care routine, treat secondary infection with an appropriate topical agent, and consider moisture-wicking textiles in skin folds. The authors rated the overall quality of evidence as low and called for well-designed trials (Romanelli et al., Journal of Wound Care, 2023 [3]).
Structured skin care beats ad-hoc washing for protecting skin. An umbrella review of 12 systematic reviews found that structured programs using low-irritating cleansers and leave-on products help maintain skin integrity and prevent skin damage. Barrier films and lipophilic leave-on products were effective for incontinence-associated and diaper dermatitis, though no product was shown to be superior, and most reviews in the field were at high risk of bias (Fastner et al., International Journal of Nursing Studies, 2023 [4]).
Key Takeaways
Feature | Details |
Primary Cause | Skin-to-skin friction combined with heat and moisture. [1] |
Common Locations | Armpits, groin, under breasts, neck creases, and belly folds. [1] |
Key Symptoms | Redness, itching, raw skin, foul odor, and stinging pain. [1] |
Secondary Risks | |
Primary Treatment | Keeping skin dry, using barrier creams, and breathable clothing. [1] |
Prevention |
Understanding the Mechanics of Intertrigo
Intertrigo is fundamentally an inflammatory response to mechanical friction. [1] When skin surfaces rub against each other, the outer layers of the skin (the epidermis) become irritated. This process is significantly accelerated by the presence of moisture, usually from sweat, which causes the skin surfaces to stick together and increases the abrasive force of the rubbing.
The environment within a skin fold is naturally warm and dark, providing a perfect incubator for microorganisms. In many cases, the initial inflammation damages the skin’s protective barrier, allowing naturally occurring bacteria and fungi to multiply uncontrollably. This overgrowth triggers a secondary immune response, leading to the characteristic red, bumpy, or weeping rash associated with the condition.
Identifying the Symptoms of Skin Fold Irritation
The presentation of intertrigo can vary depending on the severity and the presence of any secondary infection. Most individuals first notice a mild redness or a “chafed” feeling in a specific skin fold. As the condition progresses, the symptoms become more pronounced and uncomfortable.
If the rash develops a “cheesy” odor or shows small red “satellite” bumps outside the main area, a fungal infection (candidiasis) is likely present. [5] A secondary bacterial infection may cause increased swelling, warmth, and pus.
Common Locations for Intertrigo Development
Intertrigo can develop anywhere skin meets skin. [3] The most frequent sites are those that naturally trap moisture and experience frequent movement.
Upper Body: The creases of the neck, the armpits (axilla), and the area beneath or between the breasts (inframammary folds). [1]
Midsection: Folds of the abdomen (panniculus), particularly in individuals with significant weight loss or obesity. [1]
Lower Body: The groin (inguinal folds), the crease between the buttocks (intergluteal cleft), the inner thighs, and even between the toes or fingers. [1]
Risk Factors and Underlying Causes
While anyone can develop intertrigo, certain factors significantly increase the likelihood of its occurrence. These factors typically involve anything that increases skin-to-skin contact or moisture retention.
Physical Factors: Obesity is strongly associated with intertrigo [1] [2] due to more pronounced skin folds. Excess skin following major weight loss also creates new areas for friction. [1]
Environmental Factors: Living in hot, humid climates increases sweating and moisture entrapment. [1] [6]
Medical Conditions: Diabetes can alter skin pH [6] and increase sweating, making the skin more hospitable to fungi. Incontinence (urinary or fecal) creates a chronically moist environment in the groin. [5] [6]
Lifestyle Factors: Wearing tight, non-breathable clothing or shoes, poor hygiene, and excessive sweating (hyperhidrosis) all contribute to the risk. [1]
Diagnosis and Professional Evaluation
Diagnosing intertrigo is primarily a clinical process; there is no formal test for it. [1] A healthcare provider will examine the rash and take a detailed medical history, including any recent changes in activity, clothing, or environment. If an infection is suspected, further tests may be used: [1]
Visual Examination: The appearance and location of the rash are often enough for a diagnosis.
Wood’s Lamp Test: A special ultraviolet light may be used to look for specific bacterial or fungal signatures. [1] [6]
Skin Scraping (KOH Test): A small sample of skin cells is examined under a microscope to confirm the presence of fungus. [5]
Skin Biopsy: In rare, persistent cases, a small piece of skin may be removed for laboratory analysis to rule out other skin disorders like psoriasis or eczema. [6]
Treatment and Management Strategies
The primary goal of treating intertrigo is to eliminate the environment that allowed the inflammation to start. This involves a combination of lifestyle adjustments and, if necessary, topical medications.
Treatment Category | Action Steps |
Moisture Control | Keep the area dry using fans, hairdryers on a cool setting, or absorbent powders. [1] |
Friction Reduction | Wear loose-fitting, moisture-wicking cotton clothing; use barrier gels or zinc oxide. [1] |
Separation | Place cotton or gauze strips in skin folds to keep the surfaces from touching. [1] |
Topical Medication | |
Oral Medication | Systemic antibiotics or antifungals for severe or widespread infections. [1] |
Complications of Untreated Intertrigo
If intertrigo is ignored, the damaged skin can become a gateway for more serious health issues. Secondary infections are the most common complication.
Fungal Overgrowth: Persistent yeast infections can spread to the nails or other areas of the body. [1]
Cellulitis: A deep bacterial infection of the skin and underlying tissue [1] that can be life-threatening if not treated properly.
Sepsis: A severe systemic reaction to infection that requires immediate emergency medical intervention. [1] [6]
Long-Term Prevention and Skin Care
Preventing recurrence is a key part of managing intertrigo. Consistency in skin care and lifestyle choices can significantly reduce the risk of future flare-ups.
Daily Hygiene: Shower daily and ensure all skin folds are thoroughly dried [1] by patting gently rather than rubbing. [1]
Clothing Choices: Opt for breathable, natural fibers like cotton and avoid tight-fitting garments that trap sweat. [1]
Weight Management: Reducing body weight can decrease the depth and number of skin folds.
Diabetes Management: Keeping blood sugar levels within a healthy range helps maintain proper skin health and pH. [1]
Barrier Protection: Proactively apply anti-chafing gels or powders to high-friction areas before exercise or in hot weather. [1]
Conclusion
Intertrigo is an uncomfortable but highly manageable condition. By focusing on the core principles of cleanliness, dryness, and friction reduction, most cases can be resolved quickly. If you notice signs of infection, such as increased pain, swelling, or a foul odor, consult a healthcare professional for targeted treatment.
Frequently Asked Questions
What is the most common cause of intertrigo?
Is intertrigo contagious?
No, intertrigo itself is not contagious [1], though a secondary infection can spread to other parts of the body.
Can I use baby powder for intertrigo?
A drying powder can help keep the area dry, but don’t use it at the same time as an ointment, because they form a tacky paste. [1]
How long does it take to heal?
With proper care, mild cases often improve within days to a couple of weeks, but intertrigo can become chronic (six weeks or more) [1] or keep coming back.
Does diet affect intertrigo?
Indirectly; managing conditions like diabetes through diet can help.
What does an intertrigo rash look like?
It usually appears as a red or reddish-brown, raw-looking rash in skin folds. [1]
Is intertrigo the same as a yeast infection?
Not always, but a yeast infection is a common secondary complication. [1]
Can I use coconut oil on intertrigo?
Oils can trap moisture, so barrier creams with zinc oxide or petrolatum [1] and keeping the area dry are the better-supported choices.
Why does intertrigo smell?
The smell is usually caused by the overgrowth of bacteria or yeast in the moist fold. [1]
Can exercise make intertrigo worse?
Yes, due to increased friction and sweating, unless preventative measures are taken.
Should I use a bandage on intertrigo?
Usually not; air circulation is better for healing.
What is the best fabric for intertrigo?
100% cotton or moisture-wicking athletic fabrics.
Can babies get intertrigo?
Yes, it is common in neck folds and diaper areas.
Is intertrigo a sign of poor hygiene?
Not necessarily; it can happen to anyone, but good hygiene helps prevent it.
Can stress cause intertrigo?
Stress doesn’t cause it directly but can increase sweating.
What is a “satellite lesion”?
Small red bumps near the main rash, typical of a yeast infection. [5]
Can I use over-the-counter hydrocortisone?
Yes, for mild inflammation, but consult a doctor for long-term use. [6]
Does intertrigo cause permanent skin damage?
Rarely, unless a severe infection like cellulitis occurs.
Can I swim with intertrigo?
Yes, but dry the affected areas thoroughly immediately after.
Is intertrigo common in the elderly?
Yes, due to decreased mobility [5] and skin changes.
What is the difference between intertrigo and psoriasis?
Psoriasis is an immune-mediated skin condition; intertrigo is friction-based.
Can intertrigo be prevented?
Yes, by keeping skin folds clean, dry, and cool. [1]
What is a skin barrier cream?
A cream that protects the skin from moisture and friction. [1]
Can intertrigo happen between the toes?
Yes, this is called interdigital intertrigo, and it is often called “athlete’s foot” if a fungus is present.
Does weight loss help?
Yes, it can reduce the size of skin folds.
Can I use a hairdryer on my skin?
Yes, on the “cool” setting to ensure skin folds are dry. [1]
Is intertrigo related to eczema?
They are different, but both involve skin inflammation.
Can intertrigo cause a fever?
Only if a secondary infection has become systemic (sepsis).
What is a Wood’s lamp?
Can tight shoes cause intertrigo?
Yes, between the toes.
Is it okay to scratch the rash?
No, scratching can damage the skin further and lead to infection.
Can intertrigo be chronic?
Yes, especially in individuals with ongoing risk factors.
What is the best way to dry skin folds?
Patting gently with a soft towel or using a fan.
Can I use deodorant on the rash?
Avoid applying it to raw or broken skin, as it may sting. A mild antiperspirant can help reduce sweating for prevention. [1]
Does humidity affect intertrigo?
High humidity increases the risk by preventing sweat from evaporating.
What is a secondary infection?
An infection that occurs because the skin was already damaged by intertrigo.
Can intertrigo occur in the armpits?
Yes, it is one of the most common locations.
Is intertrigo more common in summer?
Can I use cornstarch for intertrigo?
Some people do, but it can clump when damp. Ask your provider which drying powder suits you, and don’t use powder together with an ointment.
What is cellulitis?
Can intertrigo affect the face?
Rarely, but it can occur in deep facial folds.
Is intertrigo painful?
It can be, especially if the skin becomes raw or infected.
Can I use antifungal cream without a prescription?
Yes, for mild cases, but see a doctor if it doesn’t improve.
Does diabetes make intertrigo harder to treat?
Yes, because high blood sugar can slow healing.
What is a skin biopsy?
A procedure where a small skin sample is taken for testing.
Can intertrigo cause blisters?
Severe inflammation or infection can sometimes lead to small blisters.
Is intertrigo related to obesity?
There is a strong correlation due to increased skin folds. [2]
Can I use rubbing alcohol on the rash?
No, it will be extremely painful and dry out the skin too much.
What should I do if the rash spreads?
Consult a healthcare professional promptly.
Can intertrigo be a sign of something else?
Sometimes it can mimic other skin conditions like erythrasma.
Related Reading
References
Cleveland Clinic. Intertrigo: What Is It, Causes, Symptoms & Treatment. Cleveland Clinic. Last updated August 24, 2021. https://my.clevelandclinic.org/health/diseases/21693-intertrigo
Kottner J, Everink I, van Haastregt J, et al. Prevalence of intertrigo and associated factors: A secondary data analysis of four annual multicentre prevalence studies in the Netherlands. International Journal of Nursing Studies. 2020;104:103437. PMID: 32105975. https://doi.org/10.1016/j.ijnurstu.2019.103437
Romanelli M, Voegeli D, Colboc H, et al. The diagnosis, management and prevention of intertrigo in adults: a review. Journal of Wound Care. 2023;32(7):411-420. PMID: 37405940. https://doi.org/10.12968/jowc.2023.32.7.411
Fastner A, Hauss A, Kottner J. Skin assessments and interventions for maintaining skin integrity in nursing practice: An umbrella review. International Journal of Nursing Studies. 2023;143:104495. PMID: 37099847. https://doi.org/10.1016/j.ijnurstu.2023.104495
Kalra MG, Higgins KE, Kinney BS. Intertrigo and secondary skin infections. American Family Physician. 2014;89(7):569-573. PMID: 24695603. https://www.aafp.org/pubs/afp/issues/2014/0401/p569.html
Nobles T, Syed HA, Miller RA. Intertrigo. StatPearls. Treasure Island (FL): StatPearls Publishing; 2024. Last updated October 28, 2024. https://www.ncbi.nlm.nih.gov/books/NBK531489/
Disclaimer
The information provided in this article is for educational purposes only and should not be considered medical advice. Always consult with a qualified healthcare professional for diagnosis and treatment of any skin condition.
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