Condition

Stasis Dermatitis (Varicose Eczema)

Stasis dermatitis is an itchy, discoloured rash on the lower legs caused by blood pooling in the leg veins. It is a circulation problem showing on the skin, which is why creams alone do not fix it.
At a Glance

Stasis dermatitis is a rash on the lower legs, usually both, caused by blood pooling in the leg veins instead of returning to the heart. The pressure pushes fluid and red blood cells out into the skin, which causes swelling, itching, scaling and a brown staining around the ankle.

The single most important treatment is compression and leg elevation, not a cream. Treating only the skin fails, because the skin is the last step in the chain rather than the cause.

The honest catch: it is frequently mistaken for cellulitis and treated with repeated antibiotics that do nothing, and if the vein problem is left alone the skin keeps breaking down and can go on to ulcerate.

Key Facts

How CommonCommon with age. Affects roughly 6 to 7 percent of adults over 65.
Who Gets ItUsually adults over 50. More likely with varicose veins, a past blood clot in the leg, ongoing leg swelling, a leg injury or surgery, extra weight, pregnancy, or a job spent standing.
Chronic or CurableChronic. The skin can be cleared completely, but the vein problem behind it is long-term.
Rx RequiredPartly. Compression is the core treatment and needs no prescription, but settling a flare usually needs a prescription steroid.
ContagiousNo.
CostMedical-grade compression stockings run roughly $20 to $100 a pair and need replacing every three to six months. Vein procedures are often covered by insurance once the skin is affected.

Symptoms

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Stasis dermatitis builds slowly over months, and the swelling usually arrives before the rash. It affects the lower legs, and usually both of them.

What it looks and feels like

Swelling that is worse by evening — the ankle looks normal in the morning and puffy by the end of the day, and socks leave a deep mark.
Itching — often the most bothersome part, and it can be intense.
Discoloured, scaly skin — red, purple, brown or grey, dry and flaky, sometimes weeping during a flare.
Brown staining around the ankle — from iron left behind when red blood cells leak out of the vessels. This part is permanent.
Aching, heavy legs — worse after standing, better after lying down with the legs up.
Visible varicose veins — often, though not always.
Hard, tight skin over time — the lower leg can narrow above the ankle so the leg takes on an upside-down champagne bottle shape. Doctors call this lipodermatosclerosis, which just means hardened skin and fat.
Open sores — shallow ulcers, usually on the inner ankle, in longer-standing cases.

Where it shows up

  • The inner ankle first, then spreading up the shin.
  • Both legs, usually. One leg alone happens, particularly after a clot or an injury to that leg, but two legs is the usual pattern and is the main clue that this is not cellulitis.
  • Not above the knee.

How it looks on different skin tones

On light skin the early stage looks red or pink. On brown and Black skin, redness is often not visible at all — the skin looks darker, grey or violet, and the change can be missed until the swelling or scaling is obvious. The brown iron staining is also harder to see against darker skin, so the pattern matters more than the colour: where it sits, and whether the ankle swells by evening. Stasis dermatitis is underdiagnosed in darker skin for this reason.

Light
Medium
Brown
Deep

If your leg rash does not fit this description, see Lookalikes near the bottom of this page.

Causes & Risk Factors

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Stasis dermatitis is not really a skin disease. It is what happens to skin sitting under long-term pressure from poor venous return, which means blood struggling to travel back up the leg veins to the heart. Leg veins have one-way valves, and the calf muscles squeeze blood upward as you walk. When those valves leak or the veins are damaged, blood pools in the lower leg. Pressure builds, fluid and red blood cells leak into the surrounding tissue, and the iron released from those cells causes both the brown staining and ongoing inflammation. That inflammation is the rash.

This is why what caused the vein problem matters. Varicose veins, a previous deep vein clot, extra weight, pregnancy, heart failure, kidney disease, a leg injury or surgery, long hours standing, and simply getting older all raise the pressure in those veins. Any treatment aimed only at the skin is treating the last step in the chain, which is why creams alone reliably fail.

What Hurts and What Helps

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What Makes It Worse

  • Standing or sitting still for long stretches. Gravity does the damage, and a day on your feet without compression undoes a lot of progress.
  • Skipping compression. This is the biggest single reason the rash keeps coming back. Stockings only work on the days you wear them.
  • Heat. Hot baths, hot weather and sitting close to a heater all widen the veins and increase swelling.
  • Scratching. It breaks skin that is already fragile, and it is the usual first step towards an ulcer.
  • Weight gain, which raises pressure in the leg veins.
  • Topical antibiotics and old-fashioned remedies. Neomycin, bacitracin, lanolin, fragrance and benzocaine are the usual culprits. People with stasis dermatitis become allergic to their own creams at unusually high rates, so a rash that gets worse after starting a new product is often the product.
  • Repeated courses of antibiotics for cellulitis that was never there. They do not help, and they delay the treatment that would.

Daily Habits That Help

  • Compression. Graduated compression stockings, worn every day, press on the veins from the outside so blood moves upward instead of pooling. This is the treatment, not an add-on. Put them on first thing in the morning before the swelling starts, and have the pressure chosen for you rather than guessing at a pharmacy shelf.
  • Leg elevation. Legs above the level of your heart for fifteen to thirty minutes, several times a day, and propped up at night if you can manage it. It is free and it works.
  • Walking. Every step squeezes the calf muscle, which pumps blood up the leg. Ankle circles and calf raises help if you cannot walk far.
  • A plain, thick, fragrance-free moisturizer once or twice a day. Petroleum jelly is ideal precisely because there is nothing in it to react to.
  • Treating the veins themselves. If the underlying vein disease can be fixed, closing off the faulty veins is what stops this repeating for the rest of your life.
+2 more
  • Losing weight if you are carrying extra, and moving more if your job keeps you standing in one spot.
  • Getting the arteries checked before starting compression. If the blood supply into the leg is also poor, tight compression can do harm. The check takes minutes and it is worth asking for.

Try at Home

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These help with the itch, the dryness and the skin barrier. None of them replace compression — they sit on top of it.

Always
This is the treatment, not an extra. Graduated stockings press on the leg from outside so blood moves upward instead of pooling, which removes the pressure causing the rash. Put them on first thing in the morning, before the swelling starts, and wear them every day. Have the pressure chosen for you, and have your arteries checked first — compression is unsafe if the arterial supply to the leg is poor.
Always
Free, and it works. Get your legs above the level of your heart for fifteen to thirty minutes, several times a day, and prop the foot of the bed up at night if you can. Swelling falls measurably, and the skin calms with it.
Always
Every step squeezes the calf muscle, which is what pumps blood back up the leg. Standing still is the problem, not being on your feet. If you cannot walk far, ankle circles and calf raises while sitting do some of the same work.
Always
The safest moisturizer for these legs, precisely because there is nothing in it to react to. People with stasis dermatitis develop allergies to their own creams at unusually high rates, so plain is better than fancy. Apply once or twice a day, and under stockings.
Moderate evidence
A thick, fragrance-free moisturizer helps the dryness and scaling, and moisturized skin itches less and cracks less. Check the ingredient list for fragrance and lanolin, which are common triggers in these legs.
Limited evidence
Useful for a mild itchy patch for a week or two. It is usually too weak for a real flare on the legs, and it does nothing about the vein pressure, so the rash comes back if compression is not happening.
Limited evidence
A simple barrier for skin that is weeping or rubbing under a dressing. It is also the active layer in a medicated compression wrap. Few ingredients means few chances to react to it.
Limited evidence
An anti-itch option that is not a steroid and not a -caine anaesthetic, so it is less likely to cause the contact allergy that plagues these legs. It relieves the itch briefly and does nothing else.
Limited evidence
A popular supplement for heavy, swollen legs. Small trials suggest it reduces swelling and aching a little. It has never been shown to clear the rash or replace compression, and it is not a reason to skip stockings.

When to See a Dermatologist

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Leg rashes are worth having looked at properly, because this one is misdiagnosed often and treated wrongly for years. Book a visit if:

  • You have a persistent, itchy, discoloured rash on one or both lower legs.
  • Your ankles swell most days, or the skin around them has turned brown.
  • You have been treated for cellulitis in the same leg more than once and it keeps coming back. Recurrent cellulitis in both legs is usually not cellulitis.
  • The rash flares every time you put a cream or ointment on it.
  • The skin above the ankle has started to feel hard or tight.
  • There is any open sore on the lower leg. Do not wait on this one.

What the visit gets you: someone to check whether the problem is venous at all, an arterial check before compression is prescribed, correctly fitted compression rather than a guess, a steroid strong enough to settle the flare, patch testing if products keep making things worse, and a referral to a vein specialist if the veins can be treated.

Go the same day if one leg becomes suddenly swollen, hot and painful, or if you have a fever. That combination can be a blood clot or genuine cellulitis.

What Happens at the Dermatologist?+

This is one of the conditions where testing genuinely changes what happens next.

An ankle-brachial index (ABI) compares the blood pressure at your ankle with the pressure in your arm, using a cuff and a small handheld Doppler probe. It takes a few minutes and answers one question: are the arteries in your leg healthy enough for compression? Compression is the main treatment and it is unsafe if the arterial supply is poor. This should be done before compression is prescribed, and often it is not.

Duplex ultrasound of the leg veins is a scan that shows the veins and the direction of blood flow. It shows whether the valves are leaking, where, and whether an old clot is involved. This is what decides whether a vein procedure is possible, so it is the test that can change the long-term outcome rather than just this month's flare.

Patch testing places small amounts of common allergens on your back and reads them over about a week. It is unusually useful here, because people with stasis dermatitis become allergic to the ingredients in their own creams — neomycin, bacitracin, lanolin, fragrance and preservatives — far more often than other people do. If your rash worsens every time you treat it, this test explains why.

A skin swab is taken only when a spot is genuinely infected, to identify the bacteria.

A skin biopsy is uncommon. It is used when the rash does not fit the usual picture, or when an ulcer is not healing as expected.

Blood tests are sometimes done to look for other causes of leg swelling, such as heart, kidney or thyroid problems. They do not diagnose stasis dermatitis.

Prescription Treatments

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Used to settle an active flare. They are short-term tools, not a long-term plan, and they do nothing about the vein pressure underneath.

Topical prescriptions
Moderate evidence
The usual prescription for an active flare. A mid-strength steroid ointment settles the itch, redness and weeping over two to four weeks. Ointment is preferred over cream, because creams contain more preservatives to react to. It treats the flare, not the cause.
Topical prescriptions
Limited evidence
A non-steroid option for skin that already looks thin and fragile, or where a steroid has been used for too long. It stings for the first few applications. Evidence in stasis dermatitis specifically is limited, and it is used off-label here.
Pills and injections
Moderate evidence
A tablet that makes blood flow more easily through small vessels. Its main use is helping venous leg ulcers heal, on top of compression. It is not a treatment for the rash itself, and nausea is a common reason people stop it.

In-Office Treatments

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These treat the veins rather than the skin. They are the only options that change the underlying problem instead of managing it.

Moderate evidence
A zinc-paste bandage wrapped from toes to knee and left on for about a week, applied in the office. It is useful when the leg is weeping, when an ulcer is present, or when stockings are too difficult to get on. It also stops you scratching.
Strong evidence
The one treatment that addresses the cause. A thin catheter is passed into the faulty vein and heat or glue seals it shut, so blood reroutes through healthy veins. Done under local anaesthetic, and you walk out. If your duplex ultrasound shows leaking valves, this is the conversation worth having.
Moderate evidence
A solution is injected into smaller varicose veins to close them off. It is often used alongside ablation to tidy up the remaining veins rather than as the main treatment for the leg.

What to Expect

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Step 1
The first two weeks

Once compression goes on and a steroid is started, the itch and any weeping settle first. Swelling improves within days if you are consistent about the stockings.

Step 2
Weeks two to six

The scaling and inflammation calm down. The steroid is usually stepped down or stopped around here. It treats the flare, not the cause.

Step 3
Three months and beyond

The skin is softer and calmer, but the brown staining stays. Iron in the skin does not wash out, and no cream removes it. Worth knowing in advance so it does not feel like failure.

Step 4
If you stop compression

It comes back, usually within weeks. This is the part people are not told clearly enough. Compression is not a course of treatment with an end date.

Step 5
If the veins are treated

When a vein procedure works, the pressure driving all of this drops and the skin can stay quiet with far less effort. That is the one step that changes the direction of travel rather than managing it.

Step 6
The honest long view

Managed well, this is a nuisance you stay on top of. Left alone it moves one way: hardened skin, then breakdown, then ulcers that take months to heal and often return. Preventing that is the whole point of treating it early.

Complications

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Stasis dermatitis is not dangerous in itself, but the direction it travels in matters.

Venous leg ulcers
The main complication. Shallow, often wet sores, usually on the inner ankle, that take months to heal and come back in around half of people. Avoiding them is the reason to treat the skin and the veins early.
Contact allergy to your own treatments
Very common here. Neomycin, bacitracin, lanolin, fragrance and preservatives are typical, and the result is a rash that gets steadily worse the harder you treat it.
Repeated misdiagnosis as cellulitis
Both legs, no fever, itchy rather than painful, and no response to antibiotics points to stasis dermatitis. Cellulitis is one leg, hot, painful and tender, usually with fever and feeling unwell. Being treated repeatedly for the wrong one means months of pointless antibiotics while the real problem goes unmanaged.
Genuine skin infection
Broken skin can be truly infected, which is why that distinction needs someone who knows it rather than a rule of thumb.
Lipodermatosclerosis
Long-standing inflammation hardens the skin and fat of the lower leg. It is uncomfortable, hard to reverse, and it makes ulcers more likely.
Permanent staining
The brown discolouration from iron does not fade.
Less movement, worse legs
Swollen, sore, heavy legs make people move less, which weakens the calf pump, which worsens the legs. Breaking that loop is a large part of treatment.

Lookalikes

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Leg rashes get confused with each other constantly, and it matters because some of the treatments are opposites.

  • Cellulitis — a bacterial skin infection. Almost always one leg, hot, painful and tender, spreading over hours to days, usually with fever and feeling unwell. Stasis dermatitis is usually both legs, itchy rather than painful, and has been there for months. Cellulitis in both legs at once is rare, and that single fact prevents a lot of unnecessary antibiotics.
  • Contact dermatitis — a reaction to something put on the leg. It usually sits on top of stasis dermatitis rather than replacing it, and it is why a rash can worsen every time it is treated.
  • Lipodermatosclerosis — the hardened, tender, tight stage of the same venous disease. It can look red and sore enough to be mistaken for infection.
  • Asteatotic eczema — a cracked, crazy-paving pattern on the shins in older adults in winter. Dry rather than swollen, and it clears with moisturizer.
  • Nummular eczema — round, coin-shaped patches scattered about rather than concentrated at the ankle, and not tied to swelling.
  • Deep vein thrombosis (DVT) — sudden swelling and pain in one leg, usually with no rash. This is urgent.
  • Psoriasis — thicker, sharply edged plaques with silvery scale, and usually present elsewhere too.
  • Pigmented purpuric dermatosis — clusters of tiny cayenne-pepper coloured spots on the lower legs, with no swelling and little itch.

Two questions separate most of these: is it one leg or two, and did it come on over hours or over months?

FAQ+
Is stasis dermatitis the same as cellulitis?No, and mixing them up is the most common error with this condition. Cellulitis is a bacterial infection: one leg, hot, painful, spreading fast, usually with fever. Stasis dermatitis is usually both legs, itchy, and builds over months. Antibiotics do nothing for it.
Will a steroid cream cure it?No. A steroid calms a flare, and it is genuinely useful for that. It does nothing about the vein pressure causing the flare, so the rash returns when you stop.
Do I really have to wear compression stockings?Yes, if you want this under control. Compression is the treatment. They only work on the days you wear them, and the rash returns fairly quickly without them.
Are compression stockings ever unsafe?Yes. If the arteries supplying your leg are narrowed, tight compression can reduce blood flow further. That is why an ankle-brachial index should be checked before compression is prescribed.
Will the brown staining go away?No. It is iron left in the skin from leaked red blood cells. It fades very little, and no cream or laser reliably removes it. Preventing more of it is the realistic goal.
Why does my rash get worse when I put cream on it?Because you may have become allergic to something in the cream. This happens far more often in stasis dermatitis than in other skin conditions. Neomycin, bacitracin, lanolin, fragrance and preservatives are the usual offenders, and patch testing identifies which.
Can stasis dermatitis be cured?The skin can be cleared completely. The vein problem underneath is long-term, though vein procedures fix the cause in some people and change the picture substantially.
Is this caused by poor circulation to my legs?It is a problem with blood leaving the legs, not blood arriving. The distinction matters, because compression helps one and can harm the other.
Does elevating my legs actually help?Yes, and it is free. Above the level of your heart, fifteen to thirty minutes at a time, several times a day. Swelling drops measurably.
Will I get a leg ulcer?Not necessarily. Ulcers are the complication of untreated or poorly controlled disease. Consistent compression, moisturizing and treating the veins substantially lower the risk.
Can I get this in only one leg?Yes, most often after a clot, an injury or surgery to that leg. It is less common than both legs, and one hot painful leg should be checked for infection or a clot first.
Should I see a dermatologist or a vein specialist?Both, ideally. A dermatologist settles the skin and sorts out contact allergy. A vein specialist works out whether the underlying veins can be treated.