Spider veins: Fortunately, spider veins aren't at all dangerous. Their main cause is heredity, but hormones and pregnancy can contribute to their appearance as well. If you have a lot of them, especially around the ankle, it is important to make sure you don't have any underlying vein trouble that you can't see as the cause. The way to find out is to see a vein specialist and have a venous ultrasound.
Answered 8/3/2018
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Spider veins: Not dangerous but can be improved with injections or laser therapy.
Answered 9/18/2013
5.3k views
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