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Raynaud's phenomenon recognition and triage

ACR educational recognition material for Raynaud phenomenon, with testing and medication selection kept outside the source scope.

JurisdictionUnited States
Source check2026-08-20
Clinical reviewiatroX editorial team 路 Clinical editorial review 路 reviewed 2026-08-20 路 due 2027-08-20
AudienceUnited States healthcare professionals
This is an iatroX educational summary of named United States sources, not an official guideline. It does not replace the complete source documents, local policy, specialist advice or clinical judgement. Use the named authority, current FDA labeling, applicable state law, payer rules and local protocol where relevant.

Scope of this summary

Adults with episodic cold- or stress-associated color change, numbness or pain in fingers or toes. The American College of Rheumatology has current 2025 educational material but no comprehensive US Raynaud clinical practice guideline; this page therefore limits itself to recognition, conservative measures and signals that warrant clinical assessment.
sources for this section:ACR Raynaud 2025

The Bottom Line

  • Recognize an intermittent cold- or stress-associated color change with numbness, tingling or pain that usually improves with rewarming.
  • Primary Raynaud commonly begins before age 30 and is not associated with another condition; secondary Raynaud can accompany systemic sclerosis, lupus, Sj枚gren disease, rheumatoid arthritis or thyroid disease.
  • Start with whole-body warmth, insulated hands and feet, controlled rewarming, smoking cessation and reduction of avoidable cold and stress triggers.
  • Do not infer a calcium-channel-blocker or other vasodilator sequence from this educational page; an exact current clinical-practice authority and product information are required for prescribing.
sources for this section:ACR Raynaud 2025

Practical clinical workflow

1
Characterize age at onset, color sequence, duration, cold or stress triggers, pain, numbness, persistent symptoms and ulcers; photographs can help when the episode has resolved before review.
2
Ask about smoking and symptoms of the connective-tissue diseases named by ACR, and examine the affected digits for tissue injury.
3
Do not infer a blood-test, vascular-study or nailfold-capillaroscopy algorithm from the educational source; obtain an exact current diagnostic authority for operational testing.
4
Track symptoms and tissue integrity for clinical communication, and obtain clinical assessment when episodes persist despite rewarming or tissue injury develops.
sources for this section:ACR Raynaud 2025

Safety boundaries and escalation

  • Color change that persists for hours despite rewarming, severe pain or a new digital ulcer can indicate more serious disease and needs prompt clinical assessment.
  • Tissue injury or ulceration can occur in severe Raynaud phenomenon and should not be managed with conservative warming advice alone.
  • The source does not establish vasodilator selection or monitoring; any prescription requires an exact treatment authority, current labeling and individualized review.
  • Rheumatology assessment can help distinguish primary from secondary Raynaud when another associated condition is suspected.
sources for this section:ACR Raynaud 2025

Localization

This page deliberately labels the ACR source as educational material, not a US diagnostic or treatment guideline. Operational testing and medication recommendations have been withdrawn.
sources for this section:ACR Raynaud 2025

Source documents

Use the linked source documents for complete recommendations, evidence grading, exclusions and implementation detail.

  1. American College of Rheumatology Committee on Communications and MarketingRaynaud's PhenomenonPatient and clinician education page; not a clinical practice guideline 路 updated 2025-02-01 路 accessed 2026-08-20
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