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KembaraXtra-Medicine- Angular Cheilitis
Basic Information
Angular cheilitis is a chronic, reactive inflammatory disorder at the corners of the mouth (oral commissures). It presents with atrophy, erythema, scaling, fissures (rhagades), crusting, and sometimes exudate. In many cases it reflects an infectious process, commonly opportunistic fungal and/or bacterial infection, and severity can range from mild irritation to painful cracking and ulceration.
Synonyms
Angular cheilosis; Rhagades; Commissural cheilitis; Perlèche (Perleche); Angular stomatitis.
ICD-10-CM Codes
K13.0 Diseases of lips; B37.83 Candidal cheilitis.
Epidemiology and Demographics
Incidence is unknown. It is suspected to account for about 0.5% to 5% of adult lip infections. It has a predilection for older adults, especially in association with denture use, and peak occurrence is in advanced age. No genetic correlation has been identified.
Risk Factors
Risk factors include xerostomia (dry mouth), nutritional deficiencies (notably B vitamins and iron), HIV infection, immunosuppression, and chronic irritation or moisture at the commissures. Common mechanical and behavioral contributors include lip licking, drooling, oral hardware, and dentures. Medications that cause dry mouth or hypersalivation can contribute and may lead to bilateral involvement.
Physical Findings and Clinical Presentation
Most cases involve both corners of the mouth. Early findings often include erythema and swelling at the commissures. Over time, linear fissures (rhagades) develop and may crack, crust, or ulcerate. With ongoing inflammation, skin thickening can occur. Disease may be limited to the lip mucosa or extend beyond the vermillion border onto the adjacent facial skin.
Etiology
Infectious causes are common and include Candida species, Staphylococcus aureus, beta-hemolytic Streptococcus species, or mixed (polymicrobial) infection. A frequent noninfectious driver is chronic saliva irritation pooling at the mouth corners, especially with overclosure of the jaw—classically seen in edentulous patients and denture wearers. Any condition that promotes chronic moisture or irritation (lip licking, drooling, oral fixation habits) can trigger or perpetuate the condition. Nutritional deficiencies—especially iron, B vitamins, and zinc—are associated. Immunosuppression (e.g., diabetes mellitus, HIV) increases susceptibility to subacute infection. Medication-related xerostomia or hypersalivation can also predispose to disease.
Diagnosis
Diagnosis is primarily clinical, based on appearance and a careful review of medical history, denture/oral appliance use, habits (lip licking, drooling), and medications.
Differential Diagnosis
Consider oral candidiasis with commissural involvement, S. aureus infection/impetigo, contact dermatitis, and angular herpes simplex.
Workup
Most patients require only clinical assessment. When infection is suspected or disease is recurrent/refractory, bacterial and fungal cultures can help identify the causative organism(s). When systemic contributors are possible, routine laboratory evaluation may include CBC, HIV testing, basic metabolic panel, and assessment for nutritional deficiencies such as iron studies, folate, and vitamin B12.
Laboratory Tests
When indicated, obtain bacterial and fungal cultures. Additional labs may include CBC, HIV, basic metabolic panel, iron, folate, and vitamin B12, especially if risk factors, recurrence, or poor response to therapy suggests underlying systemic disease.
Imaging Studies
None are required.
Treatment
Treatment depends on identifying and correcting the underlying cause(s). Because angular cheilitis is common in denture wearers, ensuring proper denture fit and excellent oral/denture hygiene is essential. Smoking and tobacco cessation are part of good oral hygiene and support healing. Topical antifungal therapy is a cornerstone because Candida albicans is implicated in more than half of cases. If bacterial pathogens such as S. aureus or streptococci are involved, targeted therapy is needed. If symptoms persist despite appropriate treatment, further evaluation is warranted to look for systemic or nutritional causes.
Nonpharmacologic Therapy
Prevention and management rely heavily on denture hygiene and regular cleaning; over-the-counter alcohol- or bleach-based denture-cleaning solutions are commonly used. If deep overclosure or marked skin “lag” at the mouth corners contributes, procedural options such as surgery or collagen/filler injections may help correct the mechanical problem. Petrolatum (petroleum jelly) can be used as a protective barrier and for prevention.
Acute General Treatment
Because inflammation is central, topical corticosteroids are commonly used. If S. aureus is implicated, topical mupirocin or fusidic acid may be used. For suspected or confirmed Candida involvement, topical antifungals such as clotrimazole or ketoconazole are commonly used.
Chronic Management
When lab work identifies nutritional deficiency, supplementation with iron, B vitamins, and/or folate can improve or resolve disease. Persistent cases may require addressing denture alignment and vertical dimension, sometimes involving dental refitting and, in selected cases, surgical repair. Treatment-refractory cases should prompt reassessment for systemic causes and reconsideration of diagnosis.
Disposition
Outpatient evaluation and treatment are appropriate in most cases.
Referral
Dermatology referral is reasonable for refractory or recurrent angular cheilitis.
Pearls and Considerations
Determining the etiology is the key step because it directs therapy and prevents recurrence. Prevention focuses on eliminating organisms from reservoirs and correcting mechanical factors. Evaluate for denture stomatitis, oral candidiasis, and possible nasal staphylococcal colonization when recurrences occur. Dentures should be removed nightly and thoroughly cleaned before reinsertion in the morning. Replacing ill-fitting dentures can restore facial contours and increase the vertical dimension of the jaws, reducing saliva pooling. In some patients, fillers injected into the commissures can lessen mechanical contributors and reduce recurrence.
Basic Information
Angular cheilitis is a chronic, reactive inflammatory disorder at the corners of the mouth (oral commissures). It presents with atrophy, erythema, scaling, fissures (rhagades), crusting, and sometimes exudate. In many cases it reflects an infectious process, commonly opportunistic fungal and/or bacterial infection, and severity can range from mild irritation to painful cracking and ulceration.
Synonyms
Angular cheilosis; Rhagades; Commissural cheilitis; Perlèche (Perleche); Angular stomatitis.
ICD-10-CM Codes
K13.0 Diseases of lips; B37.83 Candidal cheilitis.
Epidemiology and Demographics
Incidence is unknown. It is suspected to account for about 0.5% to 5% of adult lip infections. It has a predilection for older adults, especially in association with denture use, and peak occurrence is in advanced age. No genetic correlation has been identified.
Risk Factors
Risk factors include xerostomia (dry mouth), nutritional deficiencies (notably B vitamins and iron), HIV infection, immunosuppression, and chronic irritation or moisture at the commissures. Common mechanical and behavioral contributors include lip licking, drooling, oral hardware, and dentures. Medications that cause dry mouth or hypersalivation can contribute and may lead to bilateral involvement.
Physical Findings and Clinical Presentation
Most cases involve both corners of the mouth. Early findings often include erythema and swelling at the commissures. Over time, linear fissures (rhagades) develop and may crack, crust, or ulcerate. With ongoing inflammation, skin thickening can occur. Disease may be limited to the lip mucosa or extend beyond the vermillion border onto the adjacent facial skin.
Etiology
Infectious causes are common and include Candida species, Staphylococcus aureus, beta-hemolytic Streptococcus species, or mixed (polymicrobial) infection. A frequent noninfectious driver is chronic saliva irritation pooling at the mouth corners, especially with overclosure of the jaw—classically seen in edentulous patients and denture wearers. Any condition that promotes chronic moisture or irritation (lip licking, drooling, oral fixation habits) can trigger or perpetuate the condition. Nutritional deficiencies—especially iron, B vitamins, and zinc—are associated. Immunosuppression (e.g., diabetes mellitus, HIV) increases susceptibility to subacute infection. Medication-related xerostomia or hypersalivation can also predispose to disease.
Diagnosis
Diagnosis is primarily clinical, based on appearance and a careful review of medical history, denture/oral appliance use, habits (lip licking, drooling), and medications.
Differential Diagnosis
Consider oral candidiasis with commissural involvement, S. aureus infection/impetigo, contact dermatitis, and angular herpes simplex.
Workup
Most patients require only clinical assessment. When infection is suspected or disease is recurrent/refractory, bacterial and fungal cultures can help identify the causative organism(s). When systemic contributors are possible, routine laboratory evaluation may include CBC, HIV testing, basic metabolic panel, and assessment for nutritional deficiencies such as iron studies, folate, and vitamin B12.
Laboratory Tests
When indicated, obtain bacterial and fungal cultures. Additional labs may include CBC, HIV, basic metabolic panel, iron, folate, and vitamin B12, especially if risk factors, recurrence, or poor response to therapy suggests underlying systemic disease.
Imaging Studies
None are required.
Treatment
Treatment depends on identifying and correcting the underlying cause(s). Because angular cheilitis is common in denture wearers, ensuring proper denture fit and excellent oral/denture hygiene is essential. Smoking and tobacco cessation are part of good oral hygiene and support healing. Topical antifungal therapy is a cornerstone because Candida albicans is implicated in more than half of cases. If bacterial pathogens such as S. aureus or streptococci are involved, targeted therapy is needed. If symptoms persist despite appropriate treatment, further evaluation is warranted to look for systemic or nutritional causes.
Nonpharmacologic Therapy
Prevention and management rely heavily on denture hygiene and regular cleaning; over-the-counter alcohol- or bleach-based denture-cleaning solutions are commonly used. If deep overclosure or marked skin “lag” at the mouth corners contributes, procedural options such as surgery or collagen/filler injections may help correct the mechanical problem. Petrolatum (petroleum jelly) can be used as a protective barrier and for prevention.
Acute General Treatment
Because inflammation is central, topical corticosteroids are commonly used. If S. aureus is implicated, topical mupirocin or fusidic acid may be used. For suspected or confirmed Candida involvement, topical antifungals such as clotrimazole or ketoconazole are commonly used.
Chronic Management
When lab work identifies nutritional deficiency, supplementation with iron, B vitamins, and/or folate can improve or resolve disease. Persistent cases may require addressing denture alignment and vertical dimension, sometimes involving dental refitting and, in selected cases, surgical repair. Treatment-refractory cases should prompt reassessment for systemic causes and reconsideration of diagnosis.
Disposition
Outpatient evaluation and treatment are appropriate in most cases.
Referral
Dermatology referral is reasonable for refractory or recurrent angular cheilitis.
Pearls and Considerations
Determining the etiology is the key step because it directs therapy and prevents recurrence. Prevention focuses on eliminating organisms from reservoirs and correcting mechanical factors. Evaluate for denture stomatitis, oral candidiasis, and possible nasal staphylococcal colonization when recurrences occur. Dentures should be removed nightly and thoroughly cleaned before reinsertion in the morning. Replacing ill-fitting dentures can restore facial contours and increase the vertical dimension of the jaws, reducing saliva pooling. In some patients, fillers injected into the commissures can lessen mechanical contributors and reduce recurrence.
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