What is wrong with my red gums? Gingival erythema differential diagnosis
Gingival erythema or red gums has many different causes. The primary cause is going to be poor oral hygiene. Once that that is ruled out the cause gets much more difficult to discover. Other soft tissue cases are found on the link. Any text in bold is going to be a key to helping diagnose.
What are the primary causes of gingival erythema (red gums)?
We are not going to talk about the horse diagnosis of poor oral health that causes some form of gingivitis. We are going to look at the zebras. The list of potential diagnoses is fairly extensive. Mucous Membrane Pemphigoid (MMP), erythema multiforme, Stevens Johnson syndrome, erosive lichen planus, dermatitis herpetiformis, pemphigus vulgaris, bullous pemphigoid, epidermolysis bullosa acquisita, and linear IgA bullous dermatosis are some of the possibilities. Plasma cell gingivitis, GPA or Wegener granulomatosis, lupus erythematosus,and chronic idiopathic neutropenia are more conditions with gingival erythema.
Mucous membrane pemphigoid (MMP) with red gums
MMP is one of several auto-immune conditions that are both difficult to accurately diagnosis and difficult to effectively treat. Treatments are simply managing the symptoms. There are several differentialsthat are on this post as well as the link. A few others from Gwen Brown are on here as well. A patient with mucous membrane pemphigoid gets topical steroids as needed. Lidex gel three times a day on active lesions is a good treatment. This diagnosis requires an eye exam to rule out symblepheron. That can cause the patient to lose vision in the affected eye. A really nice post comparing MMP and pemphigus.
Wegener granulomatosis with strawberry red gums
Wegener’s granulomatosis, now known as granulomatosis with polyangiitis (GPA), is a rare autoimmune condition. The main issue is inflammation and damage to blood vessels, which can affect various organs, including the gums. Gingival involvement often presents as “strawberry gingivitis,” a distinctive clinical feature where the gums appear red, swollen, and granular, with a tendency to bleed easily. This condition results from granulomatous inflammation and small-vessel vasculitis in the oral tissues. Management typically involves systemic immunosuppressive therapy, such as corticosteroids and medications like cyclophosphamide or rituximab, alongside maintaining excellent oral hygiene to prevent secondary infections. Early recognition and treatment are essential to prevent progression and systemic complications.
Pemphigus vulgaris
Pemphigus vulgaris is a rare, autoimmune blistering disorder that can severely affect the gums, causing painful erosions, ulcers, and desquamation (shedding of tissue). In the oral cavity, there may be gingival erythema and the gums may be tender, and prone to bleeding. The gums are often one of the first areas affected before other mucosal or skin lesions develop. The condition results from autoantibodies targeting desmosomes, leading to loss of adhesion between epithelial cells (acantholysis). Treatment typically involves systemic corticosteroids and immunosuppressive medications to control the immune response, along with careful oral hygiene and topical therapies to manage symptoms and prevent secondary infections. Blood tests and biopsies are useful in diagnosing this condition.
Bullous pemphigoid
Bullous pemphigoid is a chronic autoimmune blistering disorder that primarily affects the skin but can occasionally involve the mucous membranes, including the gums. When the gums are affected, they may exhibit redness, tenderness, and the formation of blisters that can rupture, leaving painful erosions. Unlike pemphigus vulgaris, in bullous pemphigoid the autoantibodies are targeting the basement membrane, leading to subepithelial blistering. Treatment typically includes systemic corticosteroids, immunosuppressive agents, and topical therapies to reduce inflammation and promote healing. Good oral hygiene and antiseptic rinses can help minimize discomfort and prevent secondary infections. A diagnosis of BP is based on a combination of clinical findings and laboratory test results.
Erosive lichen planus can have gingival erythema
Erosive lichen planus (ELP) is a chronic inflammatory condition that can significantly affect the gums, presenting as painful red patches, ulcerations, and areas of tissue erosion. The affected gingiva may appear swollen and tender, with a tendency to bleed during brushing or eating. ELP is an autoimmune condition, often associated with a characteristic lacy white pattern (Wickham’s striae) around the lesions. Management focuses on reducing inflammation and discomfort through topical corticosteroids, immunomodulators, and meticulous oral hygiene to prevent secondary infections. Regular monitoring is essential, as ELP carries a small risk of malignant transformation.
Plasma cell gingivitis
Plasma cell gingivitis is a rare inflammatory condition of the gums characterized by a dense infiltration of plasma cells into the gingival tissue. It presents clinically as diffuse gingival erythema, swelling, and tenderness of the gums, often accompanied by bleeding during brushing or chewing. The term “fire engine red” is sometimes used to describe the color. The condition is typically associated with allergic reactions to substances such as toothpaste, chewing gum, or certain foods. Diagnosis is confirmed through clinical examination, biopsy, and histopathological analysis. Management involves identifying and eliminating the causative allergen, along with supportive treatments like good oral hygiene and the use of corticosteroids to reduce inflammation.
Chronic idiopathic neutropenia with gingival erythema
Chronic idiopathic neutropenia (CIN) is a rare hematological condition with persistently low levels of neutrophils in the absence of an identifiable cause. A doctor will diagnosis CIN by performing a complete blood count (CBC) with differential. This condition can predispose individuals to recurrent infections, including periodontal diseases. The gums may appear red, swollen, and prone to bleeding, with an increased risk of gingivitis and periodontitis due to impaired immune defense against oral bacteria. Maintaining excellent oral hygiene and regular dental check-ups are crucial for managing gum health in patients with CIN. In severe cases, granulocyte colony-stimulating factor (G-CSF) therapy may be used to boost neutrophil production and reduce infection risk.
Erythema multiforme
Erythema multiforme (EM) is an acute, immune-mediated condition that can affect the skin and mucous membranes, including the lips and gums. When involving the oral cavity, EM often causes painful, swollen, gingival erythema with ulcerations and erosions. The condition can also lead to widespread oral lesions, making eating and speaking difficult. Infections like herpes simplex virus or certain medications are often the trigger. EM is managed by addressing the underlying cause and providing symptomatic relief, such as using topical corticosteroids, analgesics, and maintaining good oral hygiene to prevent secondary infections. This is typically a self-limiting condition.
Stevens-Johnson Syndrome
Stevens-Johnson Syndrome (SJS) is a severe, life-threatening hypersensitivity reaction that often involves the skin and mucous membranes, including the gums. In the oral cavity, it can cause painful erosions, ulcerations, and sloughing of the gingival tissue, often accompanied by bleeding and severe discomfort. These lesions can impair eating, drinking, and speaking. The most common trigger for SJS is medications or infections. Its management requires immediate discontinuation of the causative agent, supportive care, and treatment of symptoms. Maintaining good oral hygiene and using antiseptic rinses or topical medications can help reduce the risk of secondary infections in the gums and oral tissues.This does not cause the same type of gingival erythema that the other conditions here do.
How to differentiate for dentists – Patients will have blisters other areas of the body and it is a blistering disease more than a gingival erythema type disease.
Lupus erythematosus can have gingival erythema
Lupus erythematosus (LE), particularly systemic lupus erythematosus (SLE) or discoid lupus erythematosus (DLE), can affect the gums and other oral tissues. Gingival involvement may present as red, swollen, and tender gums, sometimes with ulcerations or white, lacy patches resembling Wickham’s striae. Oral manifestations in LE are due to autoimmune inflammation and can be exacerbated by poor oral health or secondary infections. Treatment typically involves managing the underlying disease with systemic immunosuppressive agents or corticosteroids, alongside topical treatments and diligent oral hygiene to reduce symptoms and maintain gum health.
Lupus will typically present with other symptoms. Look for rashes elsewhere as well as mouth sores.
Primary herpetic gingivostomatitis (PHG) with red gums (gingival erythema)
Primary herpetic gingivostomatitis (PHG) is a common viral infection affecting the gums. It’s cause is the herpes simplex virus (HSV). It typically presents with red, swollen gums that are painful and may bleed easily. Often, small blisters form on the gums and other oral tissues. Eventually these rupture creating painful. These symptoms can make eating, drinking, and oral hygiene challenging. PHG is more common in children and is often accompanied by fever, irritability, and swollen lymph nodes. Treatment focuses on symptom relief, including hydration, pain management, and in some cases, antiviral medications. Herpetic gingivostomatitis is the same condition that occurs after the initial infection. Adults will be more likely to have herpetic gingivostomatitis.
Dermatitis herpetiformis can cause gingival erythema
Dermatitis herpetiformis (DH) is a chronic autoimmune condition associated with celiac disease. The major symptoms are intensely itchy skin lesions and, in rare cases, involvement of the oral cavity, including the gums. When the gums are affected, they may exhibit redness, tenderness, and occasional ulcerations. DH results from IgA deposits in the dermal papillae, triggered by sensitivity to gluten. Management involves a strict gluten-free diet and treatment with dapsone to control symptoms.
How to differentiate for the dentist – Presents as mouth sores more than gingival erythema. The patient will have itchy, inflamed blisters or bumps that appear in clusters on other parts of the body. Typically, symmetrical rashes on the elbows, knees, buttocks, back, and scalp. The rashes can look like eczema or as scratches or erosions.
Epidermolysis bullosa acquisita
Epidermolysis bullosa acquisita (EBA) is a rare autoimmune blistering disorder that can affect the gums and other mucosal surfaces. In the gums, EBA often presents as painful blisters, erosions, and areas of sloughing. This often leads to redness, swelling, and discomfort, particularly during eating or brushing. The condition results from autoantibodies targeting type VII collagen in the basement membrane, causing tissue fragility and subepithelial blistering. Management involves systemic treatments like corticosteroids or immunosuppressive agents, along with gentle oral hygiene practices and the use of topical therapies to reduce inflammation and prevent secondary infections. It is likely the patient will not discover this through an oral condition first. We diagnosis this through a skin biopsy.
How to differentiate for dentists. Patients will have blisters other areas of the body and it is a blistering disease more than a gingival erythema type disease.
Linear IgA bullous dermatosis
Linear IgA bullous dermatosis (LABD) is a rare autoimmune blistering disorder that can involve the gums, leading to painful blisters, erosions, and redness. The gingival involvement often appears as desquamative gingivitis, with the affected areas becoming tender and prone to bleeding. The cause of LABD is autoantibodies targeting components of the basement membrane, specifically IgA deposition along the dermo-epidermal junction. Treatment typically includes dapsone as a first-line therapy, sometimes combined with systemic corticosteroids or immunosuppressive agents. Maintaining good oral hygiene and using gentle, non-irritating oral care products are essential for managing gum symptoms and preventing secondary infections. It is likely the patient will not discover this through an oral condition first. We diagnosis this through a skin biopsy.
How to differentiate for dentists. Patients will have blisters other areas of the body and it is a blistering disease more than a gingival erythema type disease.
Erythematous candidiasis
Erythematous candidiasis is a fungal infection that affects the oral mucosa, including the gums. It is maybe the most common on this entire list and is very easy diagnosis for any healthcare professional. The yeast fungus Candida is the cause of candidiasis. It’s cause is In this condition, the gums may appear red, inflamed, and tender, often with a burning sensation. We see this most commonly when patients have denture uses, dry mouth, immunosuppression, or have prolonged antibiotic or corticosteroid use. Diagnosis is typically clinical dentists or doctors cans do a fungal culture or smear. Treatment involves antifungal medications such as nystatin or fluconazole, along with addressing any underlying predisposing factors and maintaining good oral hygiene.
Sturge-Weber syndrome
Sturge-Weber syndrome (SWS) is a rare neurocutaneous disorder. The main features are vascular malformations, including port-wine stains on the face and leptomeningeal angiomas. When the oral cavity is involved, the gums may appear red, swollen, and hypervascular due to the presence of vascular malformations. Gingival overgrowth or bleeding may occur, particularly in areas corresponding to the affected trigeminal nerve branches. These vascular abnormalities can complicate dental procedures, requiring careful management to minimize bleeding risk. Treatment focuses on managing symptoms, maintaining good oral hygiene, and close collaboration between dental and medical teams for comprehensive care.