Raynaud’s phenomenon is a condition where small blood vessels—usually in the fingers and toes—temporarily narrow (spasm) in response to cold temperatures or emotional stress. This reduces blood flow and causes noticeable color changes and discomfort. This is a common pathology seen on a weekly basis, especially during the cold winter months.
What Happens During an Episode?
A typical attack goes through three color phases:
- White – Reduced blood flow (fingers/toes turn pale)
- Blue – Oxygen levels drop
- Red – Blood flow returns, often with throbbing or tingling
Episodes can last from minutes to over an hour.
Symptoms
- Cold fingers or toes
- Numbness or tingling
- Color changes (white → blue → red)
- Burning or throbbing when circulation returns
Types of Raynaud’s
1. Primary Raynaud’s (Raynaud’s disease)
- More common
- Usually mild
- No underlying medical condition
- Often begins between ages 15–30
2. Secondary Raynaud’s (Raynaud’s syndrome)
- Caused by another condition
- Can be more severe
- May lead to skin sores or tissue damage
Common associated conditions include:
- Autoimmune diseases such as Systemic lupus erythematosus
- Scleroderma
- Rheumatoid arthritis
Triggers
- Cold weather or touching cold objects
- Emotional stress
- Smoking (nicotine constricts blood vessels)
- Certain medications (like some migraine or ADHD drugs)
Treatment & Management
For mild cases:
- Keep hands and feet warm
- Avoid rapid temperature changes
- Manage stress
- Smoking cessation
For more severe cases:
- Blood vessel–relaxing medications (e.g., calcium channel blockers)
- Treating the underlying condition (if secondary)
- Rheumatology and/or vascular specialist to assess for autoimmune disease or microvascular disease.
