Lichen Planus of the Vulva: Symptoms, Causes, and UK Treatment Options

Lichen planus is a non-infectious inflammatory condition that can affect various parts of the body, including the skin, mouth, and genitals. When it affects the vulva (the external parts of the female genitals), it is known as vulval lichen planus. Unlike common infections like thrush, this is an autoimmune-mediated condition where the body’s immune system mistakenly attacks the skin cells in the genital area.

According to NHS and NICE guidance, vulval lichen planus can be persistent and may require long-term management. It is not a sexually transmitted infection (STI), and you cannot pass it on to a partner. However, because the symptoms often involve redness, soreness, and skin changes, it is frequently mistaken for other conditions, making a professional medical assessment essential for British patients.

The symptoms of vulval lichen planus can vary from mild discomfort to significant pain that impacts daily life and sexual intimacy. Patients in the UK commonly report the following:

• Soreness and Burning: A persistent raw feeling in the vulval area, which may worsen when passing urine or during intercourse.
• White Lacy Patterns: Known as Wickham striae, these are fine white lines that appear on the surface of the skin or mucous membranes.
• Erosive Patches: Shiny red, raw areas that may bleed easily; this is known as erosive lichen planus and is particularly painful.
• Itching (Pruritus): While less common than in lichen sclerosus, some women experience significant itching.
• Structural Changes: Over time, inflammation can lead to the thinning of the skin or the fusing of the labia, which can narrow the vaginal opening.

Because these symptoms can mirror other urological and sexual health concerns, such as bacterial vaginosis or chronic thrush, it is important not to self-diagnose with over-the-counter creams.

The exact cause of lichen planus remains unknown, but evidence suggests it is an autoimmune disorder. In the UK, it is most frequently diagnosed in women over the age of 40, though it can occur at any stage of life. It is not caused by poor hygiene, diet, or stress, although flare-ups can sometimes be triggered by emotional distress or physical trauma to the skin.

NICE guidelines highlight that patients with one autoimmune condition may be at a slightly higher risk of developing others, such as thyroid disorders or vitiligo. There is also a specific variant called 'vulvovaginal-gingival syndrome,' where the condition affects the vulva, the vagina, and the gums in the mouth simultaneously.

Management aims to reduce inflammation, alleviate pain, and prevent scarring. The primary treatment recommended by UK specialists includes:

Topical Steroids

High-potency steroid ointments (such as clobetasol propionate) are typically the first line of defence. These are used to dampen the immune response in the skin. Your GP or consultant will provide a specific tapering schedule, starting with daily application and reducing the frequency as the symptoms stabilise.

Emollients and Soap Substitutes

Standard soaps and shower gels can be highly irritating to inflamed vulval skin. Patients are advised to use plain water or soap substitutes (emollients) to wash. Emollients also help to create a protective barrier on the skin.

Vaginal Dilators

If the condition has caused narrowing of the vaginal opening, a specialist may recommend the use of dilators to maintain elasticity and prevent further fusion of the tissues.

Calcineurin Inhibitors

In cases where steroids are not effective, secondary treatments like tacrolimus ointment may be prescribed under specialist supervision.

Discussing genital symptoms can feel daunting, but seeking help early is crucial for effective management. You should consider booking a consultation with a UK online doctor if you notice persistent changes to your vulval skin, unexplained soreness, or pain during sex that does not resolve with standard moisturising treatments.

An online GP consultation provides a confidential environment to discuss your symptoms. While a physical examination is often necessary to confirm a diagnosis of lichen planus, an online GP can:

• Assess your symptoms and medical history.
• Rule out common infections like thrush or STIs.
• Provide a referral to a specialist dermatologist or gynaecologist for a biopsy if required.
• Advise on immediate self-care measures and soap substitutes to manage discomfort.
• Issue private prescriptions for initial treatment if the diagnosis is clear.

Alongside medical treatment, making small changes to your daily routine can significantly improve comfort levels. UK health experts recommend:

• Wearing loose-fitting, breathable cotton underwear.
• Avoiding tight clothing like leggings or jeans during flare-ups.
• Using a barrier ointment (like liquid paraffin) before swimming in chlorinated water.
• Avoiding scented wipes, feminine deodorants, and bubble baths.
• Patting the area dry gently after washing rather than rubbing.