Angular Cheilitis in Children and Adults: Causes, Symptoms, and Treatment

Angular cheilitis (AC) is a common inflammatory disorder affecting one or both oral commissures. It is characterized by erythema, fissuring, crusting, and discomfort.

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The condition may affect both children and adults and is typically associated with Candida albicans, Staphylococcus aureus, nutritional deficiencies, saliva pooling, and systemic diseases. Accurate diagnosis and targeted treatment are essential to prevent recurrence and restore oral health.

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✅ Introduction
Angular cheilitis, also known as perlèche or angular stomatitis, is a multifactorial lesion localized at the corners of the mouth. Although often considered a minor condition, it can significantly impair eating, speaking, and oral hygiene. Predisposing factors differ by age group but commonly include local irritation, infection, and immunologic or nutritional disturbances.
Dentists play a crucial role in identifying the underlying etiology and implementing effective treatment strategies.

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✅ Etiology and Risk Factors

In Children
▪️ Frequent lip licking or thumb sucking
▪️ Excessive drooling
▪️ Malocclusion or open bite
▪️ Nutritional deficiencies (iron, folate, vitamin B12)
▪️ Atopic dermatitis
▪️ Immunosuppression

In Adults
▪️ Ill-fitting dentures
▪️ Reduced vertical dimension of occlusion
▪️ Xerostomia
▪️ Diabetes mellitus
▪️ Iron deficiency anemia
▪️ Vitamin B-complex deficiency
▪️ Smoking
▪️ Immunocompromised states, including HIV infection

Microbial Causes
▪️ Candida albicans
▪️ Staphylococcus aureus
▪️ Mixed bacterial-fungal infection

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✅ Clinical Signs and Symptoms

Signs
▪️ Erythema at one or both oral commissures
▪️ Linear fissures or cracks
▪️ Crusting or ulceration
▪️ Maceration of adjacent skin
▪️ White pseudomembranes in candidal cases

Symptoms
▪️ Burning sensation
▪️ Pain during mouth opening
▪️ Itching
▪️ Tenderness
▪️ Difficulty eating spicy or acidic foods

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✅ Diagnosis
Diagnosis is usually clinical and based on history and examination. Recurrent or refractory cases may require:

▪️ Microbiological culture
▪️ Complete blood count
▪️ Serum ferritin
▪️ Vitamin B12 and folate levels
▪️ Blood glucose testing

✅ Differential Diagnosis

📊 Summary Table: Differential Diagnosis of Angular Cheilitis

Condition	Key Clinical Features	Distinguishing Characteristics
Herpes Labialis	Grouped vesicles that ulcerate and crust	Usually preceded by tingling and affects the vermilion border
Atopic Dermatitis	Dry, erythematous, pruritic skin lesions	Associated with eczema on other body areas
Contact Dermatitis	Redness, scaling, and irritation	Linked to cosmetics, toothpaste, or allergens
Lichen Planus	White reticular lesions with erosive areas	Presence of Wickham striae in oral mucosa
Actinic Cheilitis	Chronic scaling and atrophy of the lip	Primarily affects the lower lip and is sun-related

✅ Treatment

Topical Antifungal Therapy
▪️ Clotrimazole 1% cream
▪️ Miconazole 2% cream
▪️ Nystatin ointment

Topical Antibiotics
▪️ Mupirocin for confirmed or suspected bacterial infection

Barrier Protection
▪️ Petroleum jelly or zinc oxide ointment to reduce saliva irritation

Correction of Predisposing Factors
▪️ Adjust or replace ill-fitting dentures
▪️ Restore lost vertical dimension
▪️ Treat xerostomia
▪️ Improve oral hygiene
▪️ Address lip licking habits

Nutritional Supplementation
▪️ Iron
▪️ Vitamin B12
▪️ Folate
▪️ Riboflavin

Systemic Treatment
Systemic antifungals may be indicated in severe or recurrent candidal infections.

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💬 Discussion
Angular cheilitis is a multifactorial disease, and successful management requires treatment of both the lesion and its underlying cause. In children, habitual behaviors and drooling are predominant factors, whereas in adults, denture-related issues and systemic diseases are more common. Failure to investigate nutritional deficiencies or metabolic disorders often leads to recurrence.
Mixed infections involving Candida albicans and Staphylococcus aureus are particularly frequent, supporting the use of combination therapy when clinically indicated.

🎯 Clinical Recommendations
▪️ Evaluate for local and systemic contributing factors.
▪️ Assess denture fit and occlusal vertical dimension in adults.
▪️ Investigate iron and vitamin deficiencies in recurrent cases.
▪️ Encourage habit control in pediatric patients.
▪️ Use barrier ointments to protect the oral commissures.
▪️ Reassess lesions that persist beyond 2–3 weeks.

✍️ Conclusion
Angular cheilitis is a common but often recurrent condition affecting both children and adults. Effective treatment depends on identifying infectious, nutritional, mechanical, and systemic etiologies. With appropriate diagnosis and targeted therapy, most patients experience rapid symptom resolution and long-term prevention of recurrence.

📚 References

✔ Park, K. K., & Brodell, R. T. (2011). Angular cheilitis, part 1: Local etiologies. Cutis, 87(6), 289–295.
✔ Brodell, R. T., & Park, K. K. (2011). Angular cheilitis, part 2: Nutritional, systemic, and drug-related causes and treatment. Cutis, 88(1), 27–32.
✔ Gonsalves, W. C., Chi, A. C., & Neville, B. W. (2007). Common oral lesions: Part I. Superficial mucosal lesions. American Family Physician, 75(4), 501–507.
✔ Lalla, R. V., Patton, L. L., & Dongari-Bagtzoglou, A. (2013). Oral candidiasis: Pathogenesis, clinical presentation, diagnosis and treatment strategies. Journal of the California Dental Association, 41(4), 263–268.

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Angular Cheilitis or Herpes? How to Tell the Difference – A Practical Oral Health Guide

Cracks or sores at the corners of the mouth are common and often confusing. Many people ask whether they have angular cheilitis or oral herpes (cold sores). Although both conditions affect the lips, they have different causes, appearances, and treatments.

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This guide explains the differences in clear, simple language while maintaining scientific accuracy. Understanding the distinction helps ensure proper care and prevents unnecessary medication use.

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✅ What Is Angular Cheilitis?
Angular cheilitis is inflammation at one or both corners of the mouth. It is not caused by a virus. Instead, it usually develops when moisture collects in the skin folds at the lip corners, allowing fungi or bacteria to grow.

Common Causes
▪️ Saliva pooling at the corners of the mouth
▪️ Ill-fitting dentures
▪️ Lip licking or drooling
▪️ Nutritional deficiencies (iron, vitamin B12)
▪️ Weakened immune system
The most frequent microorganisms involved include Candida albicans and Staphylococcus aureus.

Typical Symptoms
▪️ Redness and cracks at the lip corners
▪️ Burning or soreness
▪️ White or softened skin in the area
▪️ Mild bleeding when opening the mouth
Angular cheilitis is not contagious.

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✅ What Is Oral Herpes (Cold Sores)?
Oral herpes is caused by the herpes simplex virus type 1 (HSV-1). Once infected, the virus remains in the body in a dormant state and may reactivate during stress, illness, or sun exposure.
According to the World Health Organization, HSV-1 infection is highly prevalent worldwide.

Typical Symptoms
▪️ Tingling or burning sensation before lesions appear
▪️ Small fluid-filled blisters
▪️ Clusters of painful sores
▪️ Crusting after the blisters break
▪️ Possible fever or swollen lymph nodes (especially in first infection)
Oral herpes is contagious, particularly during active blister stages.

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Video 🔽 Why does angular cheilitis appear? ... Angular cheilitis is also known as perleche or angular stomatitis, it is a lesion that appears in the lip comsiura, both in children, adults and the elderly.

✅ How to Differentiate Them at Home

Consider the Location
If the lesion is limited strictly to the mouth corners and appears as a crack, it is more likely angular cheilitis.
If you see small grouped blisters, especially on the lip border, it is more consistent with herpes simplex infection.

Notice the Sensation Before It Appears
A tingling or burning feeling before sores develop strongly suggests herpes.

Evaluate Recurrence Pattern
Repeated outbreaks in the same spot, triggered by stress or fever, are typical of herpes.

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✅ Treatment Differences

Treatment for Angular Cheilitis
▪️ Topical antifungal cream (if fungal cause suspected)
▪️ Mild antibacterial ointment
▪️ Lip barrier protection (petroleum jelly or zinc oxide)
▪️ Correction of denture fit if applicable
▪️ Evaluation of possible nutritional deficiencies

Treatment for Oral Herpes
▪️ Topical or oral antiviral medication (e.g., acyclovir)
▪️ Early treatment during tingling stage improves results
▪️ Avoid close contact during active lesions
The American Academy of Oral and Maxillofacial Pathology emphasizes proper diagnosis before starting antiviral therapy.

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💬 Discussion
Although both conditions affect the lips, they are biologically different. Misdiagnosing angular cheilitis as herpes may lead to unnecessary antiviral use. Conversely, assuming herpes is simple irritation may delay effective treatment and increase transmission risk.
Careful evaluation of lesion appearance, symptoms before onset, and recurrence history usually allows correct identification. When uncertainty exists, professional dental or medical evaluation is recommended.

🎯 Recommendations
▪️ Do not self-medicate with antivirals unless herpes is strongly suspected.
▪️ Keep the lip corners dry and protected if angular cheilitis is likely.
▪️ Seek professional evaluation if lesions persist longer than two weeks.
▪️ Maintain balanced nutrition to prevent deficiency-related angular cheilitis.
▪️ Avoid sharing utensils or close contact during active herpes outbreaks.

✍️ Conclusion
Angular cheilitis and oral herpes are distinct conditions with different causes, treatments, and levels of contagion. Angular cheilitis presents as cracks at the lip corners and is usually linked to moisture and fungal or bacterial growth. Oral herpes presents as painful fluid-filled blisters caused by HSV-1 and is contagious.
Recognizing the differences ensures appropriate treatment, reduces discomfort, and prevents unnecessary medication use.

📊 Comparative Table: Angular Cheilitis vs. Oral Herpes

Clinical Feature	Angular Cheilitis	Oral Herpes (HSV-1)
Primary Cause	Fungal or bacterial overgrowth due to moisture	Herpes simplex virus type 1 infection
Typical Location	Corners of the mouth only	Lips, lip border, sometimes inside lips
Lesion Appearance	Cracks, redness, fissures	Clusters of fluid-filled blisters
Contagious	No	Yes, especially during active outbreak
Standard Treatment	Topical antifungal or antibacterial cream	Antiviral medication (topical or oral)

📚 References

✔ American Academy of Oral and Maxillofacial Pathology. (2020). Clinical practice guidelines for the diagnosis of oral mucosal diseases. AAOMP.
✔ Arduino, P. G., & Porter, S. R. (2008). Herpes simplex virus type 1 infection: Overview on relevant clinico-pathological features. Journal of Oral Pathology & Medicine, 37(2), 107–121. https://doi.org/10.1111/j.1600-0714.2007.00586.x
✔ Scully, C., & Felix, D. H. (2005). Oral medicine — Update for the dental practitioner: Angular cheilitis. British Dental Journal, 199(9), 567–572. https://doi.org/10.1038/sj.bdj.4812887
✔ World Health Organization. (2022). Herpes simplex virus fact sheet. Geneva: WHO.

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Why does angular cheilitis appear?

Angular cheilitis is also known as perleche or angular stomatitis, it is a lesion that appears in the lip comsiura, both in children, adults and the elderly.

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It is related to other conditions such as the lack or absence of some vitamins, diabetes, xerostomia, or other diseases that compromise the immunity of the person. It is also related to it as a consequence of some drug.

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It is easy to identify the presence of angular cheilitis, because a reddish wound is observed and at times bleeding at the level of the lip corner.

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Management of Angular Cheilitis in children

Angular Cheilitis occurs more in children and it is caused by children sensitivity against certain contact agents like toys, foods, sunlight, allergy against medicines, cosmetics, and long term antibiotic treatment.

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Disease attacking the corners of the mouth is often cause pain when patients experience dry mouth or xerostomia. This disease can also be caused by vitamin B complex deficiency, blood iron deficiency, denture sore mouth and other factors such as breathing through mouth, wetting lips with tongue, and licking the corner of the mouth with tongue.

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Angular cheilitis also called perleche or angular cheilitis is a lesion marked with fissures, cracks on corner of lip, reddish, ulceration accompanied by burning sensation, pain and dryness on the corner of the mouth. In severe cases, these cracks can bleed when opening the mouth and cause shallow ulcer or krusta.

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Angular cheilitis can be a serious problem if it is not handled properly. This disease progression is so fast. Therefor there should be no delay in treatment if symptoms of angular cheilitis occurred and very clear. Not limited to a certain age, regardless of their sex all can be affected by this disease. Frequently in child aged 4-6 years.



° Fajriani, Fajriani. (2017). Management of Angular Cheilitis in children. Journal of Dentomaxillofacial Science. 2. 1. 10.15562/jdmfs.v2i1.461.

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