Visible veins—especially on your arms, legs, or hands—are often harmless and can result from aging, low body fat, or regular exercise. But in certain situations, those prominent veins might be your body's way of signaling an underlying health issue.
Here are five medical conditions that could be responsible for your newly noticeable veins.
Before We Start: When Visible Veins Are Normal
Visible veins are common and usually nothing to worry about. You're likely in the "normal" category if:
You've always had visible veins (genetics)
You have low body fat
You just finished exercising
You're in a warm environment
You're over 50 and your skin has naturally thinned
The veins are symmetrical on both sides
There's no pain, swelling, or skin changes
When to pay attention: Changes in vein appearance—especially if sudden, painful, or accompanied by other symptoms.
1. Varicose Veins
