Many factors: The most common cause of spider and varicose veins are hereditary factors followed by pregnancies.The more pregnancies the greater the chance of vein formation due to stretcthing of the vein valves causing reflux(leaking). In general when veins occur at an early age there is a strong genetic component. It seems that both you and your child have a strong genetic component. See a vein speciailst.
Answered 2/20/2014
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4 doctors weighed in across 3 answers
A doctor has provided 1 answer
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