Well hydrated : It sounds like high vascularity just meaning when you are well hydrated your veins expand out. Also some medications like vasodilators can cause this.
Answered 5/27/2016
5.1k views
Fluid retention.: Hand veins can swell for many reasons but the most common is certainly hereditary . Other factors would be level of hydration, aging, sun exposure and loss of elasticity. Actually, I am amazed at the amount of women that i see with bulging hand veins. It is not uncommon to undergo some fluid retention while sleeping. This would make the vein enlarge.
Answered 12/18/2017
4.9k views
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