Question 1

What is Raynaud's disease and why do my fingers turn white or blue in the cold?

Accepted Answer

Raynaud's disease causes the small arteries supplying blood to your skin to suddenly narrow (go into spasm) in response to cold temperatures or stress. This temporarily cuts off circulation, making the affected areas—usually fingers or toes—turn white, then blue, then red as blood flow returns. (Source: MedlinePlus)

Question 2

What is the difference between Raynaud's that happens on its own and Raynaud's linked to another disease?

Accepted Answer

Primary Raynaud's (also called Raynaud's disease) occurs on its own without any underlying condition and is usually milder. Secondary Raynaud's (called Raynaud's phenomenon) is linked to an underlying autoimmune or connective tissue disease like lupus or scleroderma, and tends to be more severe and more likely to cause complications. (Source: MedlinePlus)

Question 3

Can stress also trigger a Raynaud's attack?

Accepted Answer

Yes, emotional stress is a well-known trigger for Raynaud's attacks, even without cold exposure. Stress activates the same nervous system pathway that causes blood vessels to constrict in response to cold. Managing stress is therefore an important part of managing Raynaud's. (Source: MedlinePlus)

Question 4

What parts of the body can Raynaud's affect?

Accepted Answer

Raynaud's most commonly affects the fingers and toes, but it can also affect the ears, nose, lips, and nipples. These areas turn white or blue during an attack and may feel numb, cold, or prickly. As the attack resolves and blood flow returns, the area often turns red and may throb or tingle. (Source: MedlinePlus)

Question 5

Is Raynaud's dangerous?

Accepted Answer

Primary Raynaud's is generally not dangerous—it is uncomfortable but rarely causes lasting harm. Secondary Raynaud's, linked to an underlying autoimmune disease, carries more risk because severe or prolonged attacks can reduce blood supply enough to cause sores on the fingertips (digital ulcers) or, in rare cases, tissue damage. (Source: MedlinePlus)

Question 6

How do you tell if my Raynaud's is its own condition or a sign of something else like lupus?

Accepted Answer

Your doctor will take a detailed history about your attacks, examine your hands, and look for signs of an underlying condition. A key clue is nailfold capillaroscopy—examining tiny blood vessels at the base of your fingernails under a magnifying glass—to help distinguish primary from secondary Raynaud's. Blood tests are also used to check for autoimmune conditions. (Source: MedlinePlus)

Question 7

What blood tests will you use to check for an underlying disease?

Accepted Answer

Blood tests your doctor may order include an ANA (antinuclear antibody) test, anti-dsDNA, complement levels, and inflammatory markers like ESR and CRP. An elevated ANA or other positive autoimmune markers in combination with Raynaud's raises suspicion for a connective tissue disease that needs further evaluation. (Source: MedlinePlus)

Question 8

What is a nailfold capillaroscopy (a test that looks at tiny blood vessels near my fingernails)?

Accepted Answer

Nailfold capillaroscopy is a simple, painless test where a dermatoscope or magnifying instrument is used to look at the tiny capillaries at the base of your fingernails. In primary Raynaud's, these vessels look normal. In secondary Raynaud's linked to diseases like scleroderma, the capillaries are abnormally enlarged or reduced in number. (Source: MedlinePlus)

Question 9

How can you confirm Raynaud's if an attack doesn't happen during my appointment?

Accepted Answer

Raynaud's is usually confirmed by your description of the characteristic color changes (white to blue to red) in response to cold or stress. If attacks do not happen during your visit, your doctor may have you place your hands in cool water to observe the response, or simply rely on your symptom history. (Source: MedlinePlus)

Question 10

Should I be checked for diseases like lupus or scleroderma?

Accepted Answer

Yes, especially if you are under 30 at onset, have attacks in both hands, or have positive autoimmune blood tests. Conditions associated with secondary Raynaud's include scleroderma, lupus, Sjogren's syndrome, rheumatoid arthritis, and inflammatory myositis. Your doctor will screen for these with blood tests and close follow-up. (Source: MedlinePlus)

Question 11

What is the best way to protect my hands and feet from the cold?

Accepted Answer

Keeping your whole body warm—not just your hands—is essential, because overall body cooling triggers attacks even if your hands are covered. Layer clothing, wear thermal gloves and socks, use hand warmers, heat your car before getting in, and try to avoid sudden temperature changes like opening a freezer without gloves. (Source: MedlinePlus)

Question 12

Are there medicines that help keep my blood vessels open during an attack?

Accepted Answer

Calcium channel blockers—most commonly nifedipine or amlodipine—are the most widely used medications for Raynaud's. They work by relaxing the walls of small blood vessels so they stay open during cold or stress exposure, reducing both the frequency and severity of attacks. (Source: MedlinePlus)

Question 13

Can relaxation techniques or biofeedback help reduce my attacks?

Accepted Answer

Biofeedback teaches you to consciously raise the temperature of your fingers by relaxing blood vessels, and can reduce attack frequency. Relaxation techniques like progressive muscle relaxation and mindfulness may also help by reducing the stress-triggered component of attacks. (Source: MedlinePlus)

Question 14

What kinds of gloves or hand warmers work best?

Accepted Answer

Mittens tend to be warmer than gloves because they allow fingers to share warmth. Heated gloves (battery-powered or chemical hand warmer inserts) are highly effective for outdoor use. Keep a pair in your bag, car, and at work so you are never caught unprepared in a cold environment. (Source: MedlinePlus)

Question 15

Is there surgery for very severe Raynaud's?

Accepted Answer

For severe secondary Raynaud's causing digital ulcers that do not heal, surgical options like digital sympathectomy (cutting the nerves that cause blood vessel spasm) or intravenous prostacyclin infusions may be considered. These are reserved for cases where medications have failed and there is a risk of serious tissue damage. (Source: MedlinePlus)

Question 16

What blood pressure medicines (called calcium channel blockers) are used for Raynaud's and how do they help?

Accepted Answer

Calcium channel blockers like nifedipine or amlodipine relax the smooth muscle in the walls of small arteries, preventing them from going into spasm in response to cold or stress. Extended-release formulations are preferred because they provide consistent blood levels throughout the day and cause fewer side effects. (Source: MedlinePlus)

Question 17

Are there side effects from the medicines used for Raynaud's?

Accepted Answer

Common side effects include flushing, headaches, low blood pressure, ankle swelling, and feeling lightheaded when standing. These are usually more pronounced when first starting the medication and often improve over time. Taking the medication with food and starting at a low dose helps minimize side effects. (Source: MedlinePlus)

Question 18

Can I stop the medicines during warmer months?

Accepted Answer

Yes, many doctors do reduce the dose or stop the medication during warmer months when attacks are less frequent. However, this should always be done in discussion with your doctor rather than on your own, as some people still need year-round treatment even in warmer climates. (Source: MedlinePlus)

Question 19

Are there creams applied to the skin to open up blood vessels?

Accepted Answer

Topical nitroglycerin cream or gel—applied directly to the fingers—works by dilating blood vessels locally. It can be effective for acute attacks or before anticipated cold exposure but can cause headaches due to the nitrate effect. It is typically used as a second-line treatment or for specific situations. (Source: MedlinePlus)

Question 20

Are there any other medicines that might help if the first one doesn't work?

Accepted Answer

Yes, if calcium channel blockers are not working well or causing too many side effects, alternatives include losartan (a blood pressure medication), fluoxetine (an SSRI), sildenafil (a phosphodiesterase inhibitor), and intravenous iloprost for severe cases. Your doctor can discuss which options are most appropriate for you. (Source: MedlinePlus)

Raynaud's Disease