Raynaud's Phenomenon Care in Collegeville, PA
Raynaud's phenomenon makes fingers and toes change color and feel numb in the cold. Most cases are manageable, and some signal an underlying condition.
What is Raynaud's phenomenon?
In Raynaud's phenomenon, the small blood vessels in the fingers and toes, and sometimes the ears and nose, narrow excessively in response to cold or stress. Primary Raynaud's occurs on its own and is usually mild. Secondary Raynaud's is linked to an underlying condition such as scleroderma, lupus, or myositis and can be more serious.
Common symptoms
- Fingers or toes that turn white, then blue, then red
- Numbness, tingling, or coldness during an episode
- Throbbing or pain as the color returns
- Episodes triggered by cold temperatures or emotional stress
- In more severe secondary cases, painful sores on the fingertips
How Raynaud's phenomenon is evaluated
Evaluation includes your history and examination, a close look at the tiny blood vessels at the base of your nails (nailfold capillaroscopy), and blood tests such as ANA to look for an underlying autoimmune disease. The pattern of your symptoms helps tell primary from secondary Raynaud's.
Treatment
Care begins with keeping your hands, feet, and core warm, wearing gloves, avoiding smoking, and reviewing medications and decongestants that can tighten blood vessels. When episodes are frequent or severe, medications that relax blood vessels can help. Secondary Raynaud's also involves treating the underlying condition. Fingertip sores that do not heal should be seen promptly.
Medically reviewed by Dr. Shady Abdelbaki, MD · Last reviewed October 25, 2026
Frequently asked questions about Raynaud's phenomenon
Does Raynaud's phenomenon mean I have scleroderma, lupus, or myositis?
Usually not. Most people with Raynaud's have the primary form. But Raynaud's can also occur with autoimmune conditions such as scleroderma, lupus, and myositis, so Raynaud's that starts later in life, affects one side, causes sores, or comes with other symptoms, such as muscle weakness or joint pain, should be evaluated.
Is Raynaud's phenomenon dangerous?
Primary Raynaud's is usually harmless, though uncomfortable. Secondary Raynaud's can reduce blood flow enough to cause fingertip sores, so persistent or severe cases need treatment.
What can I do at home to prevent episodes?
Dress warmly, keep your whole body warm rather than only your hands, use gloves, avoid smoking and caffeine if they trigger episodes, and manage stress.
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