Vulval Lichen Planus: Symptoms, Causes, and Treatment in the UK

Vulval lichen planus is a chronic inflammatory skin condition that affects the female genital area. Unlike infections such as thrush or bacterial vaginosis, it is an autoimmune-mediated response where the body's immune system mistakenly attacks the skin cells and mucous membranes. In the UK, it is estimated to affect around 1-2% of the population, though many cases remain undiagnosed due to the sensitive nature of the symptoms.

The condition can manifest in several ways, but the most common form is erosive lichen planus, which causes painful, red, and raw areas on the vulva and sometimes inside the vagina. It is important to distinguish this from lichen sclerosus, which is more common but presents differently. According to the British Association of Dermatologists and NICE clinical knowledge summaries, lichen planus requires proactive management to control symptoms and reduce the risk of long-term complications, such as the narrowing of the vaginal opening.

The symptoms of vulval lichen planus can vary significantly between individuals. Some patients may experience mild discomfort, while others face debilitating pain that impacts their daily life and relationships. Key indicators include:

• Soreness and Burning: A persistent raw or stinging sensation, often made worse by contact with urine or clothing.
• White Patches: A characteristic lacy, white pattern known as 'Wickham striae' may appear on the skin.
• Erosions: Bright red, raw areas that may bleed slightly if touched.
• Vaginal Discharge: A yellow or blood-stained discharge if the internal mucosal lining is involved.
• Painful Intercourse: Significant discomfort or an inability to have penetrative sex due to inflammation or scarring.

If left untreated, the inflammation can lead to adhesions, where the labia may fuse together or the entrance to the vagina narrows. Seeking an early consultation with a healthcare professional or an online doctor in the UK is the best way to prevent these anatomical changes.

The exact cause of lichen planus remains unknown, but it is widely accepted to be an autoimmune condition. The T-cells in the immune system become overactive and attack the protein in the basal layer of the skin. It is not caused by poor hygiene, it is not an allergy, and most importantly, it is not an STI. You cannot pass this condition to a partner.

Some evidence suggests a genetic link, and it may occur alongside other autoimmune disorders such as thyroid disease or vitiligo. Certain triggers, including stress or specific medications (like beta-blockers or NSAIDs), have been linked to flares, though these associations are not always clear-cut. In some cases, patients may also have lichen planus affecting other parts of the body, such as the mouth (oral lichen planus) or the scalp.

While there is currently no permanent cure for vulval lichen planus, the condition can be managed effectively so that patients live symptom-free. In line with NHS guidance, the primary treatment is the use of topical corticosteroids. These high-potency creams or ointments (such as Clobetasol propionate) work by suppressing the localised immune response and calming the inflammation.

Self-Care and Lifestyle Adjustments

• Soap Substitutes: Avoid scented soaps, bubble baths, and feminine hygiene wipes. Use a plain emollient or soap substitute to wash the area.
• Cotton Clothing: Wear loose-fitting, breathable cotton underwear and avoid tight trousers that cause friction.
• Barrier Creams: Applying a thin layer of a plain emollient before swimming or urinating can protect the sensitive skin from irritation.
• Lubrication: Use water-based or silicone-based lubricants during intimacy if appropriate, though some patients may need to wait until inflammation is controlled.

For more severe or erosive cases, a GP or specialist may prescribe oral medications, such as immunosuppressants or retinoids, to manage the condition from the inside out.

Many women feel embarrassed to discuss genital skin issues, leading to delays in treatment. Speaking to a GP online can be a comfortable first step. An online GP consultation allows you to discuss your symptoms in a confidential, calm environment without the immediate stress of a physical waiting room.

You should seek medical advice if you notice persistent changes to your vulval skin, especially if you have sores that do not heal or if the pain is affecting your quality of life. An online doctor can review your history, provide initial treatment for symptomatic relief, and advise whether you need a physical examination or a referral to a gynaecologist or dermatologist for a biopsy. Early intervention is the gold standard for maintaining vulval health and preventing scarring.

Vulval lichen planus is a long-term condition that often goes through periods of 'flares' and 'remission'. Regular monitoring is essential. There is a very small increased risk (approximately 1-3%) of developing a type of skin cancer called squamous cell carcinoma in the affected area over many years. Because of this, the British Association of Dermatologists recommends that patients perform a self-examination once a month and see their doctor annually for a review, even if the condition feels stable.