A member asked:

The veins on my wrists aren't visible. why?

3 doctors weighed in across 2 answers

OK: Either they are small or you have increased subcutaneous fat.

Answered 6/3/2013

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Dr. John Landi answered

Specializes in Phlebology

Multiple reasons: Veins return blood back to the heart and can carry a large volume of blood. Depending on many factors including levels of hydration, genetics, outside temperature and even physical activity, the size of the veins will vary. Another important function of the veins is to help control body temperature and this too will affect vein size. Also with aging, veins enlarge as tissue volume decreases.

Answered 12/10/2013

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