Scrofuloderma: Signs, Causes, And How To Treat

Written by Medicover Team and Medically Reviewed by Dr Bhushan Jairam Telhure , Dermatologists

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Scrofuloderma is a form of cutaneous tuberculosis that develops when tuberculosis infection spreads directly from an infected lymph node, bone, or joint to the overlying skin. It commonly presents as painless nodules that gradually break down into ulcers and draining sinus tracts. Early diagnosis and appropriate anti-tuberculosis treatment are essential to prevent tissue destruction, scarring, and further spread of the infection.

What Are the Types of Scrofuloderma?

Scrofuloderma may present in different clinical forms depending on the appearance and progression of the skin lesions.

Nodular Scrofuloderma: Presents as firm, painless nodules beneath the skin.
Ulcerative Scrofuloderma: Characterized by ulcers with persistent discharge.
Cold Abscess Scrofuloderma: Features painless abscesses that may rupture and form sinus tracts.
Papular Scrofuloderma: Appears as small raised papules on the skin.
Hypertrophic Scrofuloderma: Causes thickened, raised skin lesions with chronic inflammation.

What Are the Symptoms of Scrofuloderma?

Symptoms usually develop slowly as the tuberculosis infection spreads from deeper tissues to the skin.

Firm, painless skin nodules
Swollen lymph nodes beneath the affected skin
Redness and swelling of the surrounding skin
Cold abscess formation
Ulcers with persistent discharge
Draining sinus tracts
Fever
Fatigue
Weight loss
Permanent scarring after healing

What Causes Scrofuloderma?

Scrofuloderma occurs when tuberculosis bacteria spread directly from an infected structure beneath the skin.

Mycobacterium tuberculosis infection
Spread from infected lymph nodes
Tuberculosis involving bones or joints
Non-tuberculous mycobacterial infection (rare)
Weakened immune system

When Should You See a Doctor for Scrofuloderma?

Scrofuloderma is commonly treated by an infectious disease specialist or a dermatologist. Depending on the extent of skin involvement, care may also require a pulmonologist , general surgeon, pathologist, and radiologist for diagnosis, wound management, and comprehensive treatment.

Seek medical attention if you develop:

Persistent skin nodules over swollen lymph nodes
Ulcers that do not heal
Draining sinus tracts or pus discharge
Neck or skin swelling associated with tuberculosis
Unexplained fever and weight loss
Recurring skin abscesses or chronic wounds

Early diagnosis and treatment help prevent extensive tissue damage and long-term scarring.

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How Is Scrofuloderma Diagnosed?

Diagnosis combines clinical examination with laboratory investigations and imaging to confirm tuberculosis and determine the extent of disease.

Physical examination
Medical history and tuberculosis exposure assessment
Skin biopsy
Fine-needle aspiration cytology (FNAC)
Acid-fast bacilli (AFB) staining
Mycobacterial culture
PCR testing for tuberculosis
Tuberculin skin test (Mantoux test)
Interferon-Gamma Release Assay (IGRA)
Ultrasound, CT scan, or MRI to evaluate deeper tissue involvement
Chest X-ray to identify associated pulmonary tuberculosis

How Is Scrofuloderma Treated?

Treatment focuses on eliminating the tuberculosis infection, promoting wound healing, and preventing recurrence and complications.

Anti-tuberculosis therapy: Standard combination treatment with isoniazid, rifampicin, pyrazinamide, and ethambutol.
Wound care: Regular cleaning and dressing of ulcers and draining sinuses.
Drainage of abscesses: Performed when significant collections develop.
Surgical excision: Considered for persistent sinus tracts or extensive scar tissue.
Nutritional support: Helps improve immunity and recovery.
Regular follow-up: Monitors treatment response and detects recurrence.

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What Are the Risk Factors for Scrofuloderma?

Several factors increase the likelihood of developing scrofuloderma.

Active tuberculosis infection
HIV infection or other immunodeficiency disorders
Close contact with individuals with tuberculosis
Malnutrition
Overcrowded living conditions
Poor hygiene
Long-term immunosuppressive therapy

What Complications Can Scrofuloderma Cause?

If left untreated, scrofuloderma can cause significant skin and soft tissue damage.

Chronic skin ulcers
Persistent draining sinus tracts
Extensive scarring
Secondary bacterial infections
Spread of tuberculosis to nearby tissues
Functional impairment depending on the affected area

Can Scrofuloderma Be Prevented?

Prevention includes early diagnosis and complete treatment of tuberculosis, prompt evaluation of persistent swollen lymph nodes, maintaining good personal hygiene, avoiding close contact with untreated tuberculosis cases, improving nutrition, strengthening immune health, and following public health measures to reduce tuberculosis transmission.

What Is the Prognosis for Scrofuloderma?

With timely diagnosis and appropriate anti-tuberculosis therapy, most patients recover successfully. Early treatment minimizes tissue destruction, reduces permanent scarring, and prevents the spread of infection. Completing the full course of medication and attending regular follow-up visits are essential for achieving the best long-term outcome.