Folliculitis Decalvans and Dissecting Cellulitis: Causes, Symptoms, and Treatments Explained
Folliculitis decalvans (FD) and dissecting cellulitis of the scalp (DCS) are rare, chronic inflammatory scalp conditions that can lead to scarring hair loss (cicatricial alopecia). These conditions are often misunderstood, misdiagnosed, and difficult to treat, but early intervention can help manage symptoms and prevent further hair loss.
Dr. David Bryant, board-certified dermatologist and founder of World’s Famous Dermatologist, specializes in Black and ethnic skin and provides expert care for these challenging conditions.
What is Folliculitis Decalvans (FD)?
FD is a chronic inflammatory disorder affecting hair follicles, usually starting as small pustules and crusted bumps on the scalp. Over time, it can destroy hair follicles, leaving smooth, scarred patches.
Key Points: Folliculitis Decalvans
Triggered by an abnormal immune response to bacteria, often Staphylococcus aureus
Causes localized scarring alopecia
More common in middle-aged men, but can affect anyone
Chronic and requires long-term management
Symptoms:
Painful pustules or abscesses on the scalp
Crusting and oozing in affected areas
Progressive hair loss with scarring
Redness and inflammation around follicles
What is Dissecting Cellulitis of the Scalp (DCS)?
DCS is a painful, chronic inflammatory condition often associated with FD and other follicular occlusion disorders such as hidradenitis suppurativa. It presents as boggy nodules, pus-filled abscesses, sinus tracts, and scarring.Folliculitis Decalvans.
Symptoms:
Painful lumps on the scalp, often on the crown
Pus-filled abscesses that may connect, forming sinus tracts
Hair loss in affected areas, sometimes with hair remaining between lesions
Chronic inflammation and scarring
Risk Factors:
Young adult Black males are more commonly affected
Blocked hair follicles and ruptured follicles triggering inflammation
Associated with other follicular disorders like acne conglobata or hidradenitis suppurativa
Diagnosis -Folliculitis Decalvans
Diagnosis typically involves:
Clinical examination of pustules, scarring, and scalp lesions
Scalp biopsy to confirm follicular destruction and inflammation
Trichoscopy revealing yellow dots (cysts) and black dots (destroyed hairs)
Accurate diagnosis is critical, especially for Black and ethnic skin, as inflammation may appear differently than in lighter skin tones.
Treatment and Management -Folliculitis Decalvans
While there is no permanent cure, treatments focus on controlling inflammation, managing infection, and preventing further hair loss.
Medical Treatments -Folliculitis Decalvans
Antibiotics: Long-term oral antibiotics (doxycycline, minocycline, rifampin/clindamycin) to control infection and inflammation
Retinoids: Oral isotretinoin for severe or refractory cases
Topicals: Steroids, antiseptic washes like chlorhexidine
Biologics: TNF inhibitors or IL-17/IL-23 inhibitors for severe chronic cases
Procedural and Surgical Options -Folliculitis Decalvans
Laser hair removal or photodynamic therapy for targeted inflammation control
Surgical excision (scalpectomy) with skin grafting for severe, recalcitrant cases
Self-Care and Lifestyle Measures
Avoid picking or squeezing lesions
Use antiseptic shampoos and avoid oil-based hair products
Quit smoking and maintain scalp hygiene
Follow dermatologist-prescribed treatment plans consistently
Prognosis
FD and DCS are chronic, difficult-to-treat conditions:
Medications work gradually; relapses are common if treatment is stopped
Surgical options can provide durable resolution in severe cases
Early intervention is crucial to prevent permanent hair loss and scarring
When to See a Dermatologist
Consult a dermatologist if you experience:
Chronic scalp pustules or abscesses
Painful, boggy lumps on the scalp
Progressive hair loss with scarring
Ineffective results from over-the-counter treatments
Dr. David Bryant specializes in treating FD, DCS, and scarring alopecia, with expertise in Black and ethnic skin, providing personalized treatment plans to manage chronic scalp conditions -Folliculitis Decalvans
📍 Serving patients in Decatur, Stockbridge and the greater South Atlanta area
🌐 Learn more: World’s Famous Dermatologist
This article is for educational purposes only and is not a substitute for professional medical advice. Always consult a qualified healthcare provider for diagnosis and treatment-Folliculitis Decalvans.






