Lichen sclerosus

Overview

Lichen sclerosus (LY-ken skler-OH-sus) is a long-term skin condition that causes white, patchy, and thin skin. It most often affects the genital and anal areas, but can appear on other parts of the body. It is not contagious — you cannot catch it from someone else. The condition can be uncomfortable, but with proper care, symptoms can be well managed.

Lichen sclerosus is not extremely common, but it is not rare. It affects about 1 in 30 to 1 in 100 people. Many cases go undiagnosed because symptoms can be mistaken for other conditions.

Lichen sclerosus can affect anyone, but it is most common in women, especially after menopause. It also occurs in men and can sometimes appear in children. In children, it is more common in girls than boys.

Symptoms

Common symptoms

• White, smooth patches of skin that look thin and wrinkled
• Itching that can be intense, especially around the genital and anal areas
• Burning or soreness
• Pain during sexual intercourse or urination
• Skin that tears or bleeds easily
• Blister-like sores or ulcers

Symptoms in children

• Itching and discomfort around the genitals and anus
• Redness or white patches
• Constipation because the child may avoid passing stool due to pain
• Bedwetting or urine accidents (if the area is sore)

Symptoms in older adults

• Same general symptoms but may be more severe due to longer duration before diagnosis
• Skin that is very thin and easily damaged
• Increased risk of scarring that narrows the vaginal opening (in women) or foreskin (in men)

Causes

Main causes

• The exact cause of lichen sclerosus is unknown.
• It is likely related to an overactive immune system that attacks the skin (autoimmune condition).
• Genetics may play a role — it sometimes runs in families.
• Hormonal changes may trigger it, especially around menopause.

Risk factors

• Being female, especially after menopause
• Having a family history of lichen sclerosus or other autoimmune conditions (like thyroid disease, vitiligo, or alopecia areata)
• Having an autoimmune disorder yourself

When to see a doctor

See a doctor urgently if:

• If you have a painful genital sore that does not heal within a few days
• If you have difficulty passing urine or stool because of swelling or pain
• If you notice a new lump, growth, or change in the appearance of the skin

Book a routine appointment if:

• If you have persistent itching, burning, or white patches in the genital or anal area
• If you notice changes in the skin texture (thin, wrinkly, or easily torn)
• If sexual intercourse or urination becomes painful

Diagnosis

A doctor can often diagnose lichen sclerosus just by looking at the skin. They will ask about your symptoms and examine the affected area. Sometimes they may need to take a small sample of skin (biopsy) to confirm the diagnosis and rule out other conditions.

Tests that may be done

• Physical examination of the skin and mucous membranes
• Skin biopsy — removing a tiny piece of skin to look at under a microscope
• Blood tests are not usually needed, but may be done to check for other autoimmune conditions

What to expect at your appointment

The examination is straightforward and private. The doctor will respect your comfort and dignity. If a biopsy is needed, numbing medicine is used so it feels like a small pinch. Results usually come back within a week or two.

Treatment

Treatment for lichen sclerosus aims to control symptoms, prevent scarring, and lower the risk of complications. Most people respond well to medical treatment and self-care. It is a chronic condition, meaning it can come and go, but with proper management it can be kept under control.

Self-care at home

• Keep the area clean and dry using gentle, unscented soap and water.
• Avoid scratching — keep fingernails short and consider wearing cotton gloves at night.
• Use a plain, fragrance-free moisturizer or emollient to protect the skin.
• Wear loose, soft underwear made from cotton to reduce irritation.
• Avoid urinary tract irritants like perfumed wipes, bubble bath, or fabric softeners.

Medical treatments

Doctors usually start with a topical corticosteroid ointment or cream to reduce inflammation and itching. These are applied sparingly to the affected area for a set time. Other treatments may include topical calcineurin inhibitors or ultraviolet light therapy in some cases. Never use over-the-counter steroid creams without a doctor's advice, as they can thin the skin further.

When is surgery considered?

Surgery may be considered if lichen sclerosus causes severe scarring that narrows the vaginal opening or tightens the foreskin (in men). Surgery can also remove abnormal tissue if there is a high risk of skin cancer. However, surgery does not cure the underlying condition, and treatment usually continues afterward.

Living with this condition

Living with lichen sclerosus means paying attention to skin care and managing symptoms. Most people find they have periods of flaring and remission (when symptoms calm down). Keeping a gentle skin care routine and following your treatment plan can help you stay comfortable. It is normal to feel anxious or frustrated — talk to your doctor or a support group.

Lifestyle tips

• Avoid sexual activity during flare-ups to prevent irritation.
• Use a lubricant (water-based, unscented) if you have sex, to reduce friction.
• Practice good hygiene without over-washing or using harsh products.
• Stay active — gentle exercise can improve circulation and mood.

Diet and exercise

There is no special diet for lichen sclerosus, but eating a balanced, immune-supporting diet rich in fruits, vegetables, and whole grains is always a good idea. Avoid foods that seem to trigger inflammation if you notice a pattern. Regular exercise helps reduce stress, which may help prevent flare-ups.

Mental health and emotional wellbeing

Lichen sclerosus can affect your mental health due to discomfort, embarrassment, or worries about intimacy. It is important to talk to a healthcare professional or a counsellor if you feel down or anxious. You are not alone — many people find relief by sharing experiences with others who have the condition.

Prevention

There is no known way to prevent lichen sclerosus because the cause is not fully understood. However, early treatment can prevent it from getting worse and reduce the risk of complications like scarring or skin cancer.

Vaccines

There are no vaccines that prevent lichen sclerosus.

Screening programmes

No routine screening is recommended for lichen sclerosus. However, if you have it, your doctor may recommend regular check-ups to monitor the affected skin because there is a slightly increased risk of skin cancer in the genital area.

Complications

If left untreated

• Scarring that narrows the vaginal opening (in women) or foreskin (in men), making sex or urination difficult
• Chronic pain and discomfort
• Sores that become infected
• Slightly increased risk of developing a type of skin cancer (squamous cell carcinoma) in the affected area

Long-term outlook

With proper diagnosis and treatment, most people with lichen sclerosus can control their symptoms and avoid serious complications. It is a long-term condition, but it does not shorten life expectancy. Many people lead active, fulfilling lives with the right care. Regular follow-up with your doctor is important to keep your skin healthy.

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