When the skin covering them becomes thinner or loses some of its underlying volume, the veins naturally become easier to see.
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This is particularly noticeable as people get older. Aging causes changes in skin thickness, elasticity and the amount of fat beneath the skin, which can make veins appear much more prominent.
So, in many cases, visible veins simply mean:
There is less tissue hiding the veins.
It does not necessarily mean that the veins themselves are unhealthy.
- Aging Can Make Veins Much More Noticeable
One of the most common explanations is simply getting older.
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As skin ages, it becomes thinner, drier and less elastic. The hands can also lose some of the fat and volume beneath the skin.
Together, these changes make the veins underneath more visible.
This is why prominent veins are particularly common on the hands and forearms of older adults.
The veins may look larger even though there hasn’t been a dangerous change in circulation.
2. Low Body Fat Can Make Veins Stand Out
