Lichen sclerosus is one of the most underdiagnosed gynaecological conditions in India — not because it is rare, but because its symptoms are attributed to recurrent thrush for months or years before a proper examination identifies what is actually happening.

Intense vulvar itching, white skin changes, and skin fragility are not features of recurrent thrush. They are the hallmarks of lichen sclerosus — a chronic autoimmune inflammatory condition that, if untreated, causes progressive architectural changes to the vulva and carries a small but real risk of vulvar cancer.

Dr. Shachi Singh, consultant gynaecologist at Prakash Hospital, Sector 33, Noida, explains what lichen sclerosus is, why it must not be missed, and what treatment looks like.

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What Lichen Sclerosus Is

Lichen sclerosus (LS) is a chronic inflammatory skin condition predominantly affecting the vulva and perianal skin, although it can occasionally occur on other skin surfaces. It is believed to be autoimmune in origin — the immune system attacks the skin's connective tissue. It is significantly more common in postmenopausal women but occurs at any age, including in children and young women.

The underlying process is chronic inflammation that over time replaces normal skin architecture with thin, fragile, white, scar-like tissue. This tissue does not behave like normal skin — it tears easily, bleeds with minimal trauma, and progressively loses normal structure.

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Symptoms

1. Intense itching — often described as irresistible, frequently worst at night. This is the dominant and most distressing symptom. It is typically worse than the itch of a fungal infection.

2. White, pale patches on the vulva — the skin appears whitened, thinned, and has a crinkled or cigarette-paper-like texture. The whitening most commonly affects the labia minora, the clitoral hood, and the perianal skin. The vaginal mucosa itself is not affected (this distinguishes it from vaginal atrophy).

3. Skin fragility — the affected skin tears and bleeds easily. Small cracks (fissures) appear with minimal friction — from clothing, sanitary products, or sexual intercourse.

4. Burning and soreness — from the inflamed, fragile skin.

5. Architectural changes (in advanced or untreated cases):

• The labia minora may shrink or disappear (resorption)
• The clitoral hood may fuse over the clitoris (phimosis), burying the clitoris under scar tissue
• The vaginal opening (introitus) may narrow from scarring — causing pain with intercourse or penetration, and in severe cases making penetration impossible

These architectural changes are irreversible — the scarring cannot be undone once it has occurred. Early diagnosis and treatment specifically prevents progression to these changes.

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Why It Is Frequently Missed

The symptoms of lichen sclerosus — vulvar itching and discomfort — are also the symptoms of thrush. Women self-treat with antifungal cream, experience partial temporary relief (the anti-inflammatory component of some antifungal preparations), and the diagnosis of lichen sclerosus is missed.

The key difference: lichen sclerosus does not respond to antifungal treatment in any meaningful sustained way. Women who have "recurrent thrush" that never fully resolves with antifungal treatment, or whose swab cultures repeatedly come back normal, should have a proper vulvar examination to consider lichen sclerosus.

Diagnosis requires clinical examination — looking at the vulvar skin. A biopsy is performed when the diagnosis is uncertain or when malignancy cannot be excluded on examination. Biopsy shows the characteristic histological features: epidermal thinning, homogenisation of the upper dermis, and a band-like lymphocytic infiltrate below.

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The Cancer Risk: Why This Matters

Untreated lichen sclerosus is associated with a lifetime risk of approximately 4 to 5% of developing vulvar squamous cell carcinoma. This is not a high absolute risk — but it is significantly elevated compared to the general population.

The cancer risk is related to the chronic inflammatory and proliferative process of uncontrolled lichen sclerosus. With regular appropriate treatment and monitoring, this risk is substantially reduced. Annual follow-up examination by a gynaecologist to look for any suspicious areas (thickening, ulceration, non-healing areas) is recommended for all women with lichen sclerosus.

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Treatment

1. High-potency topical corticosteroid — specifically clobetasol propionate 0.05% ointment — is the evidence-based first-line treatment and the cornerstone of long-term management.

2. Induction phase: Applied to the affected area once daily for 3 months. This dramatically reduces the inflammation, reverses the whitening to some degree, and stops progression of architectural changes.

3. Maintenance phase: After the initial 3-month course, maintenance treatment (typically clobetasol 2 to 3 times per week, or on alternate days) is continued indefinitely — because lichen sclerosus is a chronic condition that does not permanently resolve.

4. Why indefinite maintenance is necessary: Stopping treatment allows inflammation to return. In the intervals between treatment courses, the disease progresses. Consistent long-term maintenance with the correct steroid preparation maintains remission and protects against progression.

5. Addressing the fear of steroid use: Many women are reluctant to apply steroid cream to the vulva long-term, concerned about thinning or damage. Appropriately dosed topical clobetasol, used as directed for lichen sclerosus, does not cause skin thinning in the affected area — paradoxically, the inflammation itself is causing the thinning, and the steroid reduces this.

Additional measures:

• Emollients (petroleum jelly, silicone-based products) to protect fragile skin
• Avoiding irritants — synthetic underwear, scented products, harsh soaps
• Aqueous cream or similar gentle cleanser for washing

Surgical intervention: For women with significant introital narrowing causing painful intercourse or for buried clitoris from phimosis, surgical procedures can improve anatomy. However, surgery without concurrent medical treatment leads to recurrence. Surgery and continued medical management work together.

Topical tacrolimus: An alternative immunomodulator for steroid-resistant cases.

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Follow-Up: Why Annual Review Is Essential

Once lichen sclerosus is diagnosed and treatment is established, annual review with a gynaecologist who examines the vulva at each visit is recommended lifelong. The purpose is:

• Assessing treatment response and adjusting the maintenance regimen
• Identifying any area of concern — thickening, persistent ulceration, non-healing fissure — that warrants biopsy to exclude early vulvar cancer
• Monitoring for progressive architectural changes that may require surgical intervention

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Gynaecological Care in Noida and Greater Noida

Dr. Shachi Singh at Prakash Hospital, Sector 33, Noida, diagnoses and manages lichen sclerosus for women across Noida and Greater Noida — including initial assessment, biopsy where needed, steroid prescription, and long-term monitoring.

To book a consultation with Dr. Shachi Singh, call: +91 97023 46853

Clinic Hours: Monday to Saturday, 9 AM – 6 PM | Sunday, 10 AM – 2 PM

Clinic Address: D-12A, 12B, Sector-33, G.B. Nagar, Noida, Uttar Pradesh 201301

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This blog is written for educational and informational purposes only. Please consult Dr. Shachi Singh or a qualified gynaecologist for assessment and management specific to your condition.