Primary Raynaud phenomenon is the most common form. It is not linked to another medical issue.
Secondary Raynaud phenomenon is linked to another disease. It is most often linked to systemic scleroris, a joint disease, blood disorder, or blocked arteries.
Blood vessels should narrow with cold temperatures or emotional stress. In Raynaud, the blood vessels narrow too much. Blood flow to tissue past this area is severely slowed. Fingers are affected most often.
The exact cause of this overreation is not known. Primary Raynaud may be caused by a problem of the nervous system. Secondary Raynaud is thought to be caused by the linked disease.
Raynaud is more common in females. It tends to show between ages 15 to 40 years old. Factors that may increase your chance of Raynaud include:
Activities that involve repeated stress to hands such as:
Regular operation of vibrating tools, as in construction
Raynauds phenomenon. Cedars Sinai website. Available at: http://www.cedars-sinai.edu/Patients/Health-Conditions/Raynauds-Phenomenon.aspx. Accessed September 10, 2019.
Raynaud's phenomenom. National Institute of Arthritis and Musculoskeletal and Skin Diseases website. Available at: http://www.niams.nih.gov/Health_Info/Raynauds_Phenomenon/raynauds_phenomenon_ff.pdf. Accessed September 10, 2019.
Last reviewed March 2019 by
EBSCO Medical Review Board
Rimas Lukas, MD
Last Updated: 9/10/2019
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