Vulval Lichen Planus: Symptoms, Causes, and UK Treatment Options

Vulval lichen planus is a chronic inflammatory condition affecting the mucous membranes and skin of the female genitalia. Unlike common infections such as thrush, it is an autoimmune-mediated disorder where the body's immune system mistakenly attacks the skin cells. In the UK, it is less common than lichen sclerosus but can cause significant distress due to its persistent nature.

The condition can present in several ways, most commonly as 'erosive' lichen planus, which leads to raw, painful areas. It can also affect other parts of the body, such as the mouth (oral lichen planus) or the general skin, though for many British women, the symptoms are confined to the vulval and vaginal regions. Understanding that this is a long-term medical condition rather than a hygiene issue or an STI is the first step toward effective management.

The symptoms of vulval lichen planus can vary significantly between individuals. While some women experience mild itching, others may suffer from debilitating pain. According to NHS clinical guidance, key signs to look for include:

• Erosions: Bright red, raw areas that feel thin and sore, often found at the entrance to the vagina.
• White Patches: A lacy, white pattern (known as Wickham striae) appearing on the vulval skin.
• Discharge: A persistent yellow or blood-stained vaginal discharge that does not respond to anti-fungal treatments.
• Painful Intercourse: Discomfort during sex (dyspareunia) due to inflammation or narrowing of the vaginal opening.
• Scarring: Over time, untreated inflammation can lead to the loss of the labia minora or the narrowing of the vaginal canal.

If you notice any unusual changes in your genital skin, it is important to seek a medical review rather than attempting to self-treat with over-the-counter creams.

The exact cause of lichen planus remains unknown, but it is widely accepted by the British Association of Dermatologists as an autoimmune condition. In these cases, T-cells (a type of white blood cell) attack a protein in the skin and mucosal membranes. While the trigger for this attack isn't fully understood, factors may include:

• Genetics and family history.
• Stress, which can sometimes trigger a flare-up.
• Co-existing autoimmune conditions, such as thyroid disease or vitiligo.
• Specific medications, though this is more common in general skin lichen planus.

It is important to reiterate that vulval lichen planus is not caused by poor hygiene, and it is not a form of cancer, although chronic inflammation requires long-term monitoring by a healthcare professional.

Diagnosing vulval lichen planus usually begins with a physical examination by a GP or a specialist gynaecologist. Because the symptoms can mimic other conditions like bacterial vaginosis or lichen sclerosus, a definitive diagnosis often requires a skin biopsy. This is a simple procedure performed under local anaesthetic where a tiny sample of skin is taken for laboratory analysis.

Under NICE (National Institute for Health and Care Excellence) standards, patients with suspected erosive lichen planus should ideally be managed by a multidisciplinary team, which may include dermatologists and gynaecologists. If you are struggling to get an appointment, you may choose to speak to a GP online to discuss your symptoms and receive a referral pathway for further investigation.

While there is currently no permanent cure for lichen planus, the symptoms can be managed effectively to allow for a normal, active life. The primary aim of treatment is to reduce inflammation and prevent scarring.

Topical Steroids

The first-line treatment in the UK is usually a high-potency topical steroid cream or ointment, such as Clobetasol Propionate (Dermovate). Unlike steroids used on other parts of the body, genital skin often requires these stronger formulations to bring the immune response under control. Your doctor will provide a specific 'finger-tip unit' guide on how much to apply.

Emollients

Soap substitutes are essential. Standard shower gels and soaps can strip the skin of its natural oils and worsen irritation. British patients are advised to use medical-grade emollients to wash the area and keep the skin hydrated.

Other Treatments

If topical steroids are not effective, specialists may prescribe calcineurin inhibitors (like tacrolimus ointment) or oral medications such as methotrexate or oral steroids to manage severe flare-ups. Regular follow-ups are vital to ensure the skin remains healthy and to monitor for any rare cellular changes.

Genital health can be a sensitive subject, and many women feel hesitant to visit a surgery in person. Using an online doctor service in the UK offers a discreet and professional way to take the first step toward treatment. A GP online can:

• Assess your symptoms through a secure video consultation.
• Provide advice on suitable emollients and soap substitutes.
• Issue private prescriptions for initial flare-up management if a diagnosis has previously been established.
• Write a referral letter to a private or NHS specialist for a biopsy or specialist review.
• Offer guidance on managing the psychological impact of chronic vulval pain.

Seeking help early is the best way to prevent the condition from progressing and to regain your quality of life.

Alongside medical treatment, small changes to your daily routine can help reduce the frequency of flare-ups:

• Wear Silk or Cotton: Opt for breathable, loose-fitting underwear and avoid tight trousers like leggings or jeans.
• Avoid Irritants: Switch to non-biological laundry detergents and avoid using wet wipes or feminine deodorants.
• Use a Barrier Cream: Applying a thick emollient before swimming in chlorinated pools or before passing urine can protect sensitive skin.
• Pelvic Floor Health: If pain has caused tension in the pelvic muscles, seeing a specialist women's health physiotherapist can be beneficial.