What Is Lichen Sclerosus And How Can I Treat It Effectively? An Expert Guide for Men
- Dr Aaron Hughes
- Jul 20
- 14 min read
A man in his 30s came to see me recently. His symptoms had flared over a couple of months, but as we talked it through it was clear they'd really been building for over a year, with the odd episode going back further than that. By the time he reached me, his foreskin was so inflamed he couldn't pull it back at all. He'd seen his GP, been to a sexual health clinic, had a sexual health screen that came back negative, and worked his way through several creams that were all too mild to touch it. Each one helped a little. None of them got the inflammation under control.
His story is a typical one, and if any of it sounds familiar, you're in the right place.
If you're reading this, you've probably either been told you might have lichen sclerosus, or you've spotted symptoms that are worrying you and you're trying to work out what's going on. This guide covers what lichen sclerosus is, how to recognise it, how it's properly diagnosed, and how to treat it effectively. It's written for men.
I'm Dr Aaron Hughes, a consultant dermatologist with a specialist clinic for male genital skin conditions in London.
Here's the one thing I'd want you to take from this guide before you read anything else: lichen sclerosus is under-recognised and under-treated by most doctors, but it can be treated, and you shouldn't be left suffering with it.
What Is Lichen Sclerosus?
Lichen sclerosus is a chronic inflammatory skin condition that mainly affects the genital area. It can appear elsewhere on the body, but the genitals are by far the most common site. It isn't contagious. It isn't a sexually transmitted infection. And it isn't caused by anything you did or didn't do.
In men, lichen sclerosus typically affects the head of the penis (the glans) and the foreskin. It tends to cause a particular pattern of inflamed but also pale and shiny skin. Left untreated, it can cause scarring, tightening of the foreskin, and changes that affect urination or sexual function.
You may also have come across the term balanitis xerotica obliterans, usually shortened to BXO. BXO is an outdated term, that is part of the spectrum of lichen sclerosus. If you've been told you have BXO, you have lichen sclerosus.
Lichen sclerosus is the single most common reason men come to see me. I see around 20 new cases a month, and most have been carrying the condition for more than a year before they reach my clinic.
The biggest misunderstanding I find myself correcting is that this is a fungal or yeast infection. Most men arrive having been given round after round of antifungal cream by their GP. Lichen sclerosus is not a fungal infection, and antifungal creams won't fix it.
Symptoms In Men: What To Look For
Most men first notice lichen sclerosus when something stops working normally, not when they see a rash. Early changes can be subtle, particularly on darker skin tones where the textbook "white patches" description doesn't apply.
Things to look out for include:
Pale, shiny patches on the glans or foreskin
Itching, often worse at night
A burning or sore feeling, particularly after sex or showering
Tightening of the foreskin (the medical term is phimosis), which can develop slowly over months
Painful erections, or splitting of the skin during sex
Small bleeds or splits in the skin
Changes to your urinary stream if the opening of the urethra has narrowed
On darker skin tones the changes can look pigmented, purplish or pale, rather than the bright white pattern most online images show. This is one of the reasons lichen sclerosus is so often missed in men with darker skin: the "classic" picture isn't classic in everyone.
The symptom I see dismissed most often is simple redness of the foreskin. It gets dismissed as a fungal infection by GPs and sexual health clinics again and again, when it's actually one of the early signs of lichen sclerosus.
On examination, there's something I look for that gives me confidence early. Men with lichen sclerosus often have subtle anatomical differences, and the most common is what I call a floppy urethra, in which the urethral opening (the hole at the end of the penis) is wider than usual. That allows urine to microdribble and get trapped behind the foreskin, which, as I'll come to, is a big part of what drives the condition in the first place.
The picture varies a lot from man to man. Some arrive with nothing more than night-time itching and a bit of soreness, before any structural damage has set in. Others have lived with it for years and arrive like the man I described at the start, with a foreskin already so inflamed and tight that it won't retract. The earlier in that spectrum you're seen, the easier it is to fully reverse the changes.
What Causes It (And What Doesn't)
There’s a lot that we know about lichen sclerosus, but there is still a lot we don’t know. I can tell you how I think about it, and my view is shaped by my own research, which is in the skin barrier.
People often describe lichen sclerosus as autoimmune. Autoimmune is a broad term, and it's worth being precise about it. In the broad sense, lichen sclerosus is autoimmune: it's an overactivity of the immune system. But it isn't autoimmune in the strict sense. We haven't found a specific antibody, and we haven't identified what the immune system is mistakenly recognising, the way we can in conditions like thyroid disease or coeliac disease.
What the data and research keep pointing to is urine. Urine appears to have a triggering effect on lichen sclerosus. The men who tend to develop it are the ones who, for one reason or another, dribble urine: men with anatomical differences like a wider urethra, men who've had urological procedures that affect the tap at the end of the penis, and men who've had genital piercings. The idea is that the urine gets trapped behind the foreskin, causes chronic irritation and inflammation, and that tips the immune system into overactivity.
This is where the skin barrier comes in. The skin barrier is integral to most skin disease. When it fails, whether through genetic factors or through irritants like urine, the skin is left more exposed, and that exposure triggers an immune response and chronic inflammation. It's exactly why we try to protect and rebuild the barrier in lichen sclerosus, using a barrier cream alongside any other treatment.
In my own clinic, the men I see with lichen sclerosus cluster around anatomical, often subtle, changes to the genitals. A floppy urethra or a condition called hypospadias, previous genital piercings, and previous urological procedures all come up repeatedly. There's also a newer one we're increasingly recognising: certain diabetes medications that raise the amount of glucose in your urine seem to predispose people to lichen sclerosus too.
For all that, it helps to be clear about what lichen sclerosus is not:
Not contagious. You cannot give it to a partner.
Not sexually transmitted.
Not caused by poor hygiene.
Not caused by aggressive hygiene either, although harsh soaps and scrubs can irritate skin that's already inflamed.
There's also a phenomenon called Köbner's, where lichen sclerosus appears at sites of friction or skin damage. It's part of why we sometimes see it develop along scars or in areas of repeated rubbing.
How It's Diagnosed
Lichen sclerosus is usually a clinical diagnosis. That means it's diagnosed on the appearance of the skin and the story you tell, rather than on a test. A specialist with a trained eye for genital skin can often diagnose it on examination alone.
I rarely biopsy men with lichen sclerosus, because more often than not what I can see is enough to make the diagnosis. I only biopsy the penis if the diagnosis is uncertain, or if I'm concerned about precancerous or cancerous changes. That's my rule of thumb, and it spares most men a procedure they don't need.
This is one of the reasons specialist referral matters. Early lichen sclerosus, before scarring has set in, can be subtle. The longer it goes undiagnosed, the more structural damage tends to develop. A specialist in male genital dermatology will recognise the signs that often get missed in general practice, sexual health or general urology clinics.
How To Treat It Effectively
This is the section you're probably here for.
Lichen sclerosus responds well to treatment in the great majority of men, especially when it's caught before structural damage sets in. The aim is twofold: settle the active inflammation in the short term, and keep the chronic inflammation down in the long term, because it's that chronic inflammation that drives scarring and the potential risk of penile cancer.
There are two parts to how I treat it, and they matter equally.
Part one: the daily routine you control
The first part is something you do yourself, every day, and it's the part most patients have never been told about. After you urinate, gently squeeze the penis to clear the last drops of urine, dab it dry with a piece of toilet paper, and then apply a barrier cream. There's no limit to how much barrier cream you can use. This is the step that stops urine sitting trapped behind the foreskin and feeding the inflammation, and it's central to keeping the condition quiet.
You should also stop using soap, shower gel and anything fragranced on the area. Soaps and shower gels strip out the natural moisturisers that make up your skin barrier, and that's the opposite of what we want. Use a soap substitute instead. Any plain moisturiser can double as a soap substitute, and it helps replenish the barrier at the same time.
Part two: the steroid
The second part is a course of a strong topical steroid, and this one needs to be under a doctor's guidance. The standard first-line treatment is clobetasol propionate (brand name Dermovate in the UK), which is the approach recommended by the British Association of Dermatologists. It's deliberately strong, because lichen sclerosus doesn't respond reliably to milder steroids.
Here's how I teach patients to apply it. About half a fingertip of cream is enough to cover the head of the penis and the inside and outside of the foreskin. I usually have men do this twice a day for four weeks when they first come to me with active disease. That's an initial burst to switch the inflammation off. It isn't a long-term treatment, and we step it right down once things settle.
Why your GP may not have prescribed this
A lot of men reach me having never been given a steroid strong enough to work, and I understand why. I don't expect a GP to be prescribing Dermovate or clobetasol to penile rashes without experience. It's a very strong treatment, it needs to be tailored to the individual, and getting the prescribing right takes experience with these rashes. The real problem is what happens instead: faced with a strong treatment they're wary of, GPs often reach for a weaker cream and hope it works, or treat it as a fungal infection, without a firm diagnosis of what they're actually dealing with. What I'd much rather is simply that the condition is recognised, and the man is sent to someone who sees inflammatory genital rashes all the time and can direct the treatment properly.
What treatment looks like over time
At week zero, things often look very inflamed. Over the next couple of weeks, the steroid switches that inflammation off, and then we stop the strong steroid. From there, the daily routine, squeezing and dabbing dry, a regular barrier cream, and avoiding soaps, should be enough to keep good control.
The man I mentioned at the start is a good example. When I first saw him he was so inflamed he couldn't retract his foreskin. I talked him through the routine and the link between urine and the condition, gave him a course of Dermovate and a barrier cream to protect the head of the penis. When I reviewed him about six weeks later he'd had a dramatic response: the inflammation had switched off, he could fully pull his foreskin back, and he was no longer having problems with sex. A really good result.
Not everyone gets there on creams alone. About 50 to 60% of men achieve good control with the routine and topical treatment. If inflammation keeps coming back despite that, we think about the next step, which is surgery.
When surgery is needed
For men whose lichen sclerosus has already caused significant scarring, or that won't settle on medical treatment, circumcision is the next step. I typically offer it when first-line cream-based treatment has been ineffective. It's a more definitive option than it might sound: circumcision has a cure rate of over 90%, and most men who have it do really well and are essentially cured of the condition.
A note on tacrolimus and pimecrolimus
You may read elsewhere that tacrolimus and pimecrolimus, two non-steroid creams, are useful steroid-sparing options for lichen sclerosus. I don't recommend them in lichen sclerosus, and I want to be clear about why. These creams work by suppressing the immune system. With lichen sclerosus there's a long-term risk of penile cancer, and the immune system is exactly what your body relies on to clear away precancerous cells. Suppressing it locally, in tissue that already carries that risk, isn't something I’m happy to risk.
Realistic expectations
Treatment controls lichen sclerosus extremely well in most men. It doesn't permanently cure it, but controlled lichen sclerosus is a completely different experience from untreated lichen sclerosus. For most men, day-to-day symptoms can become close to non-existent.
Cancer Risk (And Why Follow-Up Matters)
If you've been diagnosed with lichen sclerosus, it's reasonable to be worried about cancer. It's a question I'm asked almost every week, and it deserves a straight answer.
The figures in the medical literature for penile cancer in men with lichen sclerosus range quite widely, between 0 and 12.5%. The average is felt to sit around 4.5%. That's low, but it's still roughly 1 in 20, so it's not something to wave away. The most important part is this: the data shows that if we reduce the inflammation and catch the condition early, we can bring that risk down towards zero. That's exactly what treatment is for.
Yes, I have diagnosed penile cancer in men with lichen sclerosus. It's rare, and it tends to happen in men who've had the condition undiagnosed for a long time and reach me only once cancer has developed. Far more often, what I see is pre-cancer, a change called penile intraepithelial neoplasia, where there are precancerous changes that are much easier to treat. Pre-cancer is more common than actual cancer. It can turn into cancer if it's left untreated, but it is much easier to treat - often with creams rather than surgery. It is the reason why early diagnosis and follow-up matter.
I always raise the cancer risk at the first consultation, and I try to do it in a way that informs without frightening. If everything looks fine, I'll say something like: everything looked fine today and I'm not worried from that point of view, but I do need to tell you that lichen sclerosus carries a risk of penile cancer in the longer term if it isn't treated. I reassure and raise it at the same time. I think it's important, partly because you have a right to know, and partly because it helps you take the condition seriously and stick with the treatment.
In between specialist appointments, see a doctor if you notice a lump, a non-healing sore, a hardening of the skin, persistent bleeding, red patches that don’t respond to steroid therapy or a change in the appearance of the skin that doesn't fit the pattern of your usual flares.
Will It Ever Go Away?
There's no specific cure for lichen sclerosus at present, although circumcision can stabilise the skin and is the closest thing that we have to a cure. This is necessary in some men, but does have associated risks. It’s therefore usually best to try cream based therapies first together with simple lifestyle changes.
The aim isn't to "beat" lichen sclerosus. The aim is good control: no active inflammation, day-to-day symptoms settled, and the long-term risks kept down. The most useful comparison is asthma or eczema. These are conditions you manage rather than ones you cure, and most people who have them live entirely normal lives because the treatment works. Lichen sclerosus is the same. Once it's in good control, sensible ongoing care tends to keep it there.
What Tends To Go Wrong (And What To Avoid)
I want to be careful here, because the biggest mistakes I see usually aren't the patient's fault. Far more often, it's that the men I meet have been kept on mild creams that help a bit and then let the condition come straight back, or have been treated for a fungal infection they never had, and never got a full diagnosis. If that's happened to you, it isn't on you.
That said, there are a few practical things worth knowing, because they genuinely trip men up:
Don't rely on hydrocortisone from the chemist as your only treatment. It isn't strong enough for lichen sclerosus, and using it alone often delays the right treatment by months.
Don't self-treat with antifungal creams because something looks "thrush-like". It's the most common detour of all, and it's why so many men lose a year before getting diagnosed.
Don't ignore a tightening foreskin or painful erections. These are signs that the condition is causing structural change, and the longer they're left, the more scarring sets in.
Don't stop the steroid the moment things feel better. Follow the course you've been given. Stopping early is one of the most common reasons symptoms come straight back.
Don't use soap, shower gel or antibacterial wash on the area, even ones branded as "gentle" or for ‘“sensitive skin”.
Don't carry shame about this. It isn't a sexually transmitted infection, it isn't caused by anything you did, and it's far more common than a single GP appointment tends to make it feel.
There's one other pattern I'd gently warn against. Sometimes lichen sclerosus is genuinely stubborn, and creams reach the limit of what they can do. In those cases I'll recommend circumcision, and I completely understand that for personal, psychological or cultural reasons some men would rather not have it. But I've seen men with severe, chronic, inflamed disease that was having a real impact on their life, that we could have fixed with a circumcision, hold off on that step for a long time. Care can be expedited when you stay engaged with the next step, even when it isn't the step you were hoping for.
When To See A Specialist (And How To See Me)
See a specialist now if you've noticed:
Tightening of the foreskin that wasn't there before
Splitting of the skin during sex
Changes to your urinary stream
A patch that's persistent, bleeding, hardened, thickened, or doesn't fit the pattern of your other symptoms
Starting a treatment with your GP is reasonable if:
The itching is mild and there's no functional change
Symptoms have only been present for a few days
There's an obvious other cause (eg you have psoriasis elsewhere on your body that also affects your penis)
Where the pathway tends to break is at recognition. Too many men get kept on mild creams or treated for a fungal infection, never get a firm diagnosis, and so never get referred to someone who sees these rashes regularly. If you've been round that loop, asking directly for a referral to a genital dermatology specialist is a reasonable thing to do.
There's very little you need to do before your first appointment, but a few things genuinely help. Bring your creams, or a list of everything you've tried. If you've had a biopsy before, bring the report so I have the full histology. If you've seen other doctors, bring any letters. You don't need to stop treatment, but if you’ve stated using a strong steroid cream, it can be worth pausing it just before you see me, because very recent use can make the skin look more settled than it really is. Recent photos of flares can also be useful.
If you'd like to see me, my private clinic locations are:
Royal Free Hospital Private Patients Unit, Hampstead
Skin Care Network, Barnet
Golders Green Outpatient and Diagnostics
Video consultations are also available.
If you're not sure whether what you have is lichen sclerosus or a different cause for balanitis (the two often get confused, and they need different treatment), there's a separate guide to balanitis.
Quick FAQ
Is lichen sclerosus a fungal infection?
No, not in the great majority of cases, despite how often it's treated as one. It's a chronic inflammatory skin condition, and antifungal creams won't clear it. If you've been on round after round of antifungals with no lasting improvement, that's a strong reason to be assessed for lichen sclerosus.
Is lichen sclerosus contagious?
No. You cannot pass it to anyone.
Is it sexually transmitted?
No. Lichen sclerosus is not an STI, and it is not caused by sex.
Can my partner catch it?
No.
How long does treatment take to work?
Most men feel a meaningful difference within four weeks of correctly applied treatment, and itching is often the first thing to settle.
Can it come back?
Yes. Lichen sclerosus is a long-term condition. Once you've had it, you manage it for the long term, even through quiet phases.
Can it affect fertility?
Not directly. Severe untreated lichen sclerosus can affect sexual function, which is one of the practical reasons treating it early matters. There are really effective treatments out there for lichen sclerosus.
There are really effective treatments out there for lichen sclerosus. It's under-recognised and under-treated, but it can be treated, and no one should be left suffering with it.
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