If your fingertips go white in the cold, then blue, then red again, it may be Raynaud’s. The NHS describes Raynaud’s phenomenon as when your blood stops flowing properly to your fingers and toes, and says it’s common and doesn’t usually cause severe problems. In the cold, or with anxiety or stress, fingers and toes change colour — white (or lighter), sometimes blue, then red — and attacks last from a few minutes to a few hours. It can often be managed by keeping warm, but it can sometimes be a sign of another condition, so see a GP if you get it for the first time over 30 or on one side only. This sets out the NHS page “Raynaud’s”.
1. Cold, anxiety or stress turn fingers and toes white, blue, then red, for minutes to hours.
2. Keep your home and yourself warm (especially hands and feet), avoid sudden temperature changes, exercise. Don’t smoke or have too much caffeine.
3. First time over 30, one side only, with joint pain, rashes or weakness, or a child under 12: see a GP.
Symptoms — NHS
| What | What the NHS says | Worth noting (our gloss) |
|---|---|---|
| Colour change | White or lighter, sometimes blue, then red as blood returns | On darker skin, fingertips may look paler rather than white |
| Other | Pain, numbness, pins and needles | — |
| Where | Fingers and toes; some people in ears, nose, lips or nipples | — |
| How long | Attacks last a few minutes to a few hours | — |
Itchy, swollen fingers and toes in the cold are chilblains, and hard, numb frozen skin is frostbite — each has its own advice.
Triggers — NHS
- Cold, anxiety and stress
- Some other health conditions, certain medicines, long-term use of vibrating tools
- Caffeine may trigger symptoms
Things you can do — NHS
| Type | What the NHS says | Worth noting (our gloss) |
|---|---|---|
| Do | Keep your home warm; wear warm clothes, especially on hands and feet | See the 18C post |
| Do | Avoid sudden temperature changes | — |
| Do | Exercise regularly; try breathing exercises or yoga; eat a balanced diet | — |
| Don’t | Smoke | — |
| Don’t | Have too much caffeine — tea, coffee, cola, chocolate | Amounts in the caffeine post |
Indoor temperature guidance is in 18C indoors in winter, and caffeine by drink in daily caffeine limit. The NHS only says “too much”, with no milligram figure.
When to see a GP — NHS
- Symptoms are very bad or getting worse, or affect daily life
- Symptoms are on one side of the body only
- You also have joint pain, skin rashes or muscle weakness
- You’re over 30 and have symptoms for the first time
- Your child is under 12 and has symptoms
The NHS lists these as non-urgent. If symptoms are bad, a GP may prescribe a medicine to improve circulation such as nifedipine (also used for high blood pressure); some take it daily, others only in cold weather. A GP may arrange tests if another condition such as rheumatoid arthritis or lupus is possible.
Checklist
- ☐ Fingers or toes going white, blue, then red in the cold?
- ☐ Gloves, thick socks, a warm home
- ☐ Avoid stepping suddenly into the cold
- ☐ Cut down on smoking and caffeine
- ☐ First time over 30, one side only, or joint pain: GP
Questions that remain
Is it the same as having cold hands and feet?
The page describes Raynaud’s as colour-changing attacks; it doesn’t say whether simply having cold hands is the same thing.
Is it dangerous?
The NHS says it’s common and usually not severe, but can sometimes signal another condition — hence the GP list above.
Sources
- NHS — Raynaud’s — source (page shows: reviewed 20 July 2023, next review 20 July 2026; checked 14 October 2026 — the review date has passed and we quote the page as shown). Definition, colour change, minutes to hours, triggers, dos and don’ts, 5 GP reasons (30, 12), nifedipine.
- Not read. Korean agency guidance on Raynaud’s.
- What we added. The “worth noting” column.
Where else to check
- Your GP — if anything on the list above applies.
Written on 14 October 2026. The content is from the NHS; the glosses are ours. It does not replace diagnosis or treatment.
