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Raynaud Phenomenon (cont.)

Raynaud's Phenomenon Causes

The classification of Raynaud's phenomenon is usually separated in two categories: idiopathic or primary Raynaud's, when no associated disease is identified; and secondary to other diseases (usually autoimmune).

  • Factors that can bring on Raynaud's phenomenon (all vasoconstrictive influences), include the following:
    • Cold or hot environments
    • Mental stressors
    • Certain occupations (vibration from tools, like jackhammers)
    • Smoking (nicotine is a stimulant/vasoconstrictor)
    • Chemical exposure (such as vinyl chloride)
  • Diseases causing Raynaud's phenomenon
  • Medications that may cause or worsen Raynaud's phenomenon
    • These include ergot derivatives, used for migraine headaches (ergotamine), beta-adrenergic blockers, amphetamines or other drugs that constrict (make the blood vessels smaller), and some chemotherapeutic agents (vinblastine, bleomycin).
    • Birth control pills are also known to affect circulation.
    • Over-the-counter drugs for treatment of the common cold (Sudafed contains pseudoephedrine.)

Picture of Raynaud's phenomenon

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Read What Your Physician is Reading on Medscape

Raynaud Phenomenon »

Raynaud phenomenon refers to reversible ischemia of peripheral arterioles.

Read More on Medscape Reference »


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