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Painful varicose and spider veins on womans legs, who is active at home. Two active seniors in the background. Vascular disease, varicose veins problems, active life concept.

Medical Conditions that Cause Spider Veins

Medical Conditions that Cause Spider Veins

Spider veins are tiny purple, red, and blue vessels that often appear on the legs and feet. While they can arise from factors like genetics, pregnancy, and aging, certain medical conditions are linked to spider vein development as well.

Chronic venous insufficiency, a condition where blood pools in the legs, creates pressure that dilates veins and causes spider veins. Varicose veins, which are twisted and enlarged vessels, also lead to spider veins forming as blood flows backward and leaks into surrounding veins.

Other circulatory system conditions like deep vein thrombosis, a blood clot in the leg veins, can obstruct healthy blood flow. The increased pressure causes spider veins as blood reroutes through smaller vessels. Heart failure or liver disease that leads to fluid buildup and swelling in the lower limbs may also contribute to spider veins.

Hormonal influences like pregnancy, menopause, and birth control use spur estrogen changes that weaken vein walls. This hormonal impact makes women more prone to spider veins. Autoimmune disorders like rheumatoid arthritis cause inflammation that damages blood vessels and creates spider veins as well.

Certain skin conditions like eczema or cellulitis cause leakage of immune cells and fluid into the skin. This leads to inflammatory damage to small veins that manifest as spider veins. Even genetic factors like inherited weak vein valves or lack of vascular support tissue increases susceptibility to spider veins.

While spider veins are generally harmless, their presence may signal venous insufficiency or advancing varicose veins. See a vein specialist if you notice increasing numbers of spider veins on your legs. Proper diagnosis and early treatment can help reduce spider veins and address any underlying causes to prevent future vein disease progression. Don’t ignore worsening spider veins.

Disclaimer: The contents of the Pinnacle Vein and Vascular Center site, such as text, graphics, images, and other material contained on the PVVC site (“content”) are for informational purposes only. The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on the Pinnacle Vein and Vascular Center site.

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    3615 S. Rome St.
    Gilbert, AZ 85297

    9744 W. Bell Rd. Suite A
    Sun City, AZ 85351

    9321 W. Thomas Rd.
    Suite 300
    Phoenix, AZ 85037


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