Why do my fingers go white in the cold? If your fingertips drain of colour on a frosty morning, go numb, and then throb bright red as they warm up again, you are almost certainly looking at Raynaud’s phenomenon. It is common, it is usually harmless, and it is also widely unrecognised: the charity Scleroderma and Raynaud’s UK says up to 10 million people in the UK live with it, around one in six of us, yet most have never heard its name. November is when it shows up, because the cold mornings have arrived and the first sharp drop in temperature is often the first trigger of the year.
The short answer is that Raynaud’s is an overreaction of the small blood vessels in your fingers and toes. When you get cold, or stressed, the arteries supplying the skin go into spasm and narrow sharply, cutting off blood flow. The skin turns white first, then blue as oxygen levels fall, then red and painful as blood rushes back in. An attack usually lasts from a few minutes to a few hours, and the symptoms are completely reversible in most people. The NHS describes Raynaud’s as common and not usually causing severe problems, and says you can often treat the symptoms yourself by keeping warm. Sometimes, though, it can be a sign of a more serious condition, so it is worth knowing which features should send you to your GP.
What happens during a Raynaud’s attack?
An attack follows a pattern that is so distinctive that doctors often recognise it from a description alone. The Plymouth Hospitals NHS Trust leaflet describes it plainly: during an episode, the sensitive arteries go into spasm and narrow, limiting blood circulation, which causes the skin to become cold and white, followed by pins and needles and numbness. Eventually the skin turns blue, then red, as fresh blood rushes in, causing pain and discomfort.
Not everyone gets all three colours. The NHS says the skin may turn white or a lighter colour as blood flow is restricted, sometimes turns blue as blood vessels react, and may turn red as blood flow returns. On brown or black skin the colour change can be harder to see, and the fingertips may simply look paler. The other symptoms the NHS lists are pain, numbness, and pins and needles. Great Ormond Street Hospital, which describes the condition in children, adds that the hands and feet may feel numb and then start to throb as blood flow returns, and that the severity of symptoms varies from person to person.
Attacks usually affect the fingers, and in about 40 per cent of people they affect the toes as well, according to the Frimley Health NHS Foundation Trust patient leaflet. The NHS notes that some people also find their ears, nose, lips or nipples are affected. The symptoms may last from a few minutes to a few hours. The key point is that the changes are temporary: the colour and feeling come back once the vessels relax and blood flow returns.
What is Raynaud’s?
Raynaud’s phenomenon, sometimes called Raynaud’s disease or Raynaud’s syndrome, is a disorder of the small arteries, most often in the hands and feet. In a healthy person, cold makes blood vessels narrow a little to keep heat in the core of the body. In Raynaud’s, that narrowing is exaggerated: the vessels clamp down far more than they need to, and blood flow to the fingertips effectively stops for a while.
Doctors divide Raynaud’s into two types. Primary Raynaud’s is the common form. It is not caused by another condition, it usually starts in younger people, and it is usually mild. Secondary Raynaud’s is linked to another health problem, a medicine, or long-term use of vibrating tools. The NHS puts it this way: Raynaud’s is sometimes caused by another health condition, taking certain medicines, or working with vibrating tools for a long time. The conditions most often involved are autoimmune diseases such as scleroderma, lupus and rheumatoid arthritis. A GP who suspects secondary Raynaud’s may arrange tests, and the NHS names rheumatoid arthritis and lupus as the conditions those tests look for.
The distinction matters because the two types behave differently. Primary Raynaud’s is a nuisance that needs managing, not a disease that needs curing. Secondary Raynaud’s is a signal: it tells a doctor to look for the condition behind it. That is why the NHS advises seeing a GP when Raynaud’s appears for the first time after the age of 30, when it affects only one side of the body, or when it comes with joint pain, skin rashes or muscle weakness. Those features make secondary Raynaud’s more likely.
How common is Raynaud’s?
Raynaud’s is far more common than most people realise, and far less often diagnosed. Scleroderma and Raynaud’s UK, the charity that supports people with both conditions, estimates that Raynaud’s affects up to 10 million people in the UK, around one in six of us, and notes that it affects mainly women. A survey the charity commissioned in 2015 found that only four per cent of 2,000 people surveyed had heard of Raynaud’s at all, and just one per cent knew what scleroderma was. That gap between how common it is and how little it is known about explains why so many people spend years assuming their white fingers are just a quirk of being cold-natured.
The gap shows up in the medical records too. A 2026 study of GP records in England, published in Rheumatology and led by Anthony Chen and colleagues, counted 158,449 people with a recorded Raynaud’s diagnosis in 2023, a prevalence of 894 per 100,000 people. That is a small fraction of the charity’s estimate of up to 10 million, which suggests most people with Raynaud’s never get a formal diagnosis. They either manage it themselves, or they never mention it to a doctor. The study also found that recorded diagnoses rise with age, peaking between 40 and 69 years, and that excluding people whose Raynaud’s is secondary to an autoimmune connective tissue disease, new diagnoses keep appearing across adult life.
The practical message is simple: if your fingers go white and numb in the cold, you are not unusual, and you are not imagining it. You are one of millions, and the fact that so few people have heard of the condition is a reason to talk about it, not a reason to dismiss it.
What triggers an attack?
Cold is the commonest trigger, and it does not have to be extreme cold. A sudden change in temperature is often enough: stepping out of a warm house into a frosty morning, reaching into a freezer, putting your hands under a cold tap, or holding a cold drink. The Irish Health Service Executive, which republishes the NHS guidance, notes that attacks are often brought on by a sudden change in temperature such as putting hands under a cold water tap or taking something from a fridge or freezer. The Plymouth leaflet adds that Raynaud’s can also be brought on by emotional changes such as stress and anxiety, and the NHS lists being cold, anxious or stressed as the three situations in which fingers and toes may change colour.
Smoking makes Raynaud’s worse, because nicotine narrows blood vessels further, and the NHS advises people with Raynaud’s not to smoke. Caffeine can also be a trigger: the NHS says not to have too much caffeine, found in tea, coffee, cola and chocolate, because it may trigger the symptoms. Some medicines can bring Raynaud’s on or make it worse, which is one reason a GP will ask about your medicines if you seek help. And people who work with vibrating tools for a long time, such as builders or road workers, can develop Raynaud’s as an occupational condition.
November is a peak month for attacks for a simple reason: the temperature drops, the heating goes on and off, and people move between warm indoors and cold outdoors many times a day. Each of those transitions is a chance for an attack. Knowing your own triggers helps, because the most effective treatment for Raynaud’s is avoiding the trigger in the first place.
Is Raynaud’s dangerous?
For most people, no. The NHS is clear: Raynaud’s is common and does not usually cause severe problems. Primary Raynaud’s is uncomfortable and sometimes painful, but it does not damage the fingers or toes, and the symptoms reverse completely when blood flow returns. That is the reassuring answer for the majority of people who notice white fingers in winter.
There is a smaller group for whom Raynaud’s is a warning sign. Scleroderma and Raynaud’s UK says that for around 300,000 people, Raynaud’s could also be a sign of a serious underlying condition, including the potentially life-threatening autoimmune condition scleroderma. Raynaud’s is usually the first symptom of scleroderma, and it can also appear with lupus and rheumatoid arthritis. This is why the NHS lists specific features that should prompt a GP visit, rather than leaving it to chance: symptoms that are very bad or getting worse, symptoms that affect daily life, symptoms on one side of the body only, and symptoms that come with joint pain, skin rashes or muscle weakness.
Age matters too. Raynaud’s that starts for the first time after 30 is more likely to be secondary, and the NHS advises seeing a GP in that case. So does Raynaud’s in a child under 12. None of this means you should panic if your fingers go white in the cold. It means you should know the red flags, check yourself against them, and get advice if any of them apply.
What can I do to help Raynaud’s?
Keeping warm is the single most effective thing you can do, and the NHS advice is practical rather than medical. Its do list is: keep your home warm; wear warm clothes during cold weather, especially on your hands and feet; try to avoid sudden changes in temperature; exercise regularly, because this helps improve circulation; try breathing exercises or yoga to help you relax; and eat a healthy, balanced diet. Its don’t list is short: do not smoke, and do not have too much caffeine.
In practice, that means gloves before you go outside, not after your hands are already cold, and warm socks and shoes rather than thin ones. Hand warmers, heated gloves and thermal layers all help, and many people find that keeping their whole body warm matters as much as covering their hands, because the body narrows the vessels in the fingers to protect its core temperature. If your core is warm, your fingers are less likely to be sacrificed. Regular exercise improves circulation generally, which is why the NHS includes it, and our guide to how much walking a day protects your back covers the habit that helps circulation too. If cold weather makes your joints ache as well, our guide to why cold weather makes joints ache explains the research behind that separate winter problem.
Some people find that warming their hands before going out helps: holding a warm mug, running hands under warm water, or wearing gloves indoors on a cold morning. The principle is the same as the NHS advice to avoid sudden temperature changes. A gradual change gives the blood vessels time to adjust; a sudden shock is what triggers the spasm.
What should I do during an attack?
When an attack starts, the aim is to get blood flowing again as gently as possible. Move somewhere warm, out of the wind and cold. Warm your hands by tucking them under your arms, into your pockets, or against your body, and keep them moving: wiggle your fingers and toes, clench and unclench your fists, and swing your arms in wide circles to encourage blood to flow to the fingertips. Running your hands under warm water can help too, but use warm water, not hot, because numb fingers cannot judge temperature properly and can be scalded without you noticing.
Do not rub the affected fingers hard, and do not use a direct heat source such as a radiator or a hot water bottle pressed against numb skin. The feeling will come back, usually within a few minutes, though the NHS notes attacks can last up to a few hours. As blood returns, the fingers often turn bright red and throb or tingle, which is uncomfortable but is a sign that circulation is returning, not that something is wrong.
If an attack does not ease with rewarming, or the skin stays white or blue for a long time, or you notice sores or cracks on the fingertips that do not heal, get medical advice. Those are signs that the blood supply may be more seriously affected, and they need a doctor’s assessment rather than home measures.
When should I see a GP about Raynaud’s?
The NHS gives a clear list of when to seek help, and it is worth checking yourself against it. See a GP if you have symptoms of Raynaud’s that are very bad or getting worse; if Raynaud’s is affecting your daily life; if your symptoms are only on one side of your body; if you also have joint pain, skin rashes or muscle weakness; if you are over 30 years old and get symptoms of Raynaud’s for the first time; or if your child is under 12 years old and has symptoms of Raynaud’s.
A GP will usually diagnose Raynaud’s from your description and by looking at your hands, and may ask about your medicines, your work, and any other symptoms. If they think Raynaud’s could be a sign of a more serious condition, such as rheumatoid arthritis or lupus, they may arrange blood tests. In some cases they may look at the tiny blood vessels at the base of your fingernails with a microscope, a test called nailfold capillaroscopy, which can help distinguish primary from secondary Raynaud’s.
If your symptoms are very bad or getting worse, a GP may prescribe a medicine to help improve your circulation. The NHS names nifedipine, a drug also used to treat high blood pressure, as the usual option. Some people need to take it every day, while others only use it to prevent Raynaud’s during cold weather. It works by relaxing the blood vessels so they do not narrow as sharply, but it can cause side effects such as headaches and flushing, so a GP will weigh the benefits against the downsides for each person.
Raynaud’s or chilblains: how to tell the difference
Chilblains are the other cold-weather hand problem, and people often confuse the two. The NHS draws the distinction in a single line: chilblains cause a burning or itchy swelling on the fingers and toes, happen after being very cold, and get worse as you warm up. Raynaud’s causes the fingers to go white, then blue, then red, with numbness and pins and needles, and it is triggered by cold or stress and eases as you warm up.
The timing is the clearest clue. A Raynaud’s attack starts during the cold exposure and improves with warming, even if the return of blood flow is painful. Chilblains appear after the cold exposure, often hours later, and feel worse as the skin warms. Chilblains are itchy, swollen and sore; Raynaud’s is numb, white and cold. Both are winter problems, and both improve with keeping warm, but they are different conditions with different causes, so it helps to know which one you have. If you are not sure, the NHS symptom table is a good place to start, and a pharmacist or GP can confirm it.
Frequently asked questions
Why do my fingers go white in the cold?
Why do my fingers go white in the cold? In most cases the cause is Raynaud’s phenomenon: the small arteries in your fingers overreact to cold or stress, go into spasm and narrow sharply, and cut off blood flow. The skin turns white first, then blue as oxygen levels fall, then red and painful as blood returns. Attacks last from a few minutes to a few hours. It is common, affecting up to 10 million people in the UK according to the charity Scleroderma and Raynaud’s UK, and it is usually harmless, but see a GP if symptoms start after 30, affect one side only, or come with joint pain, rashes or muscle weakness.
Is Raynaud’s dangerous?
For most people Raynaud’s is not dangerous. The NHS describes it as common and not usually causing severe problems, and the symptoms reverse completely when blood flow returns. It can sometimes be a sign of a more serious condition, such as scleroderma, lupus or rheumatoid arthritis. Scleroderma and Raynaud’s UK says that for around 300,000 people it could be a sign of a serious underlying condition, so it is worth knowing the red flags and seeing a GP if any of them apply.
What triggers a Raynaud’s attack?
Cold is the commonest trigger, especially a sudden change in temperature, such as stepping out of a warm house into a frosty morning, reaching into a freezer, or putting your hands under a cold tap. Stress and anxiety can also trigger attacks. Smoking and too much caffeine can make symptoms worse. Some medicines, and long-term work with vibrating tools, can also bring Raynaud’s on or make it worse.
How can I stop my fingers going white in the cold?
Keeping warm is the most effective step. The NHS advises keeping your home warm, wearing warm clothes on your hands and feet in cold weather, avoiding sudden changes in temperature, exercising regularly to improve circulation, and trying breathing exercises or yoga to relax. Do not smoke, and do not have too much caffeine. Gloves before you go outside, rather than after your hands are already cold, make a real difference, as does keeping your whole body warm.
When should I see a GP about Raynaud’s?
See a GP if your symptoms are very bad or getting worse, if Raynaud’s is affecting your daily life, if symptoms are only on one side of your body, if you also have joint pain, skin rashes or muscle weakness, if you are over 30 and get symptoms for the first time, or if your child is under 12 and has symptoms. A GP may prescribe a medicine such as nifedipine to improve circulation, or arrange tests if they think Raynaud’s could be a sign of another condition such as rheumatoid arthritis or lupus.
Related reading
- Why Does Cold Weather Make My Joints Ache? What the Research Says
- Do I Need Vitamin D in November?
- How Many Minutes of Walking Actually Protect Your Back? The 100-Minute Finding
Sources
- NHS, Raynaud’s, https://www.nhs.uk/conditions/raynauds/ (page last reviewed 20 July 2023)
- Scleroderma and Raynaud’s UK, What is Raynaud’s?, https://www.sruk.co.uk/raynauds/what-is-raynauds/
- Great Ormond Street Hospital, Raynaud’s phenomenon, https://www.gosh.nhs.uk/conditions-and-treatments/general-medical-conditions/raynaud-s-phenomenon/
- University Hospitals Plymouth NHS Trust, Raynaud’s Disease and Associated Disorders, https://www.plymouthhospitals.nhs.uk/display-pil/pil-raynauds-disease-associated-disorders-7151
- Chen A et al., The prevalence and incidence of Raynaud’s in England, United Kingdom, Rheumatology (Oxford), 2026, https://pubmed.ncbi.nlm.nih.gov/42417407/
