That blue line suddenly tracing across your hand or leg might catch you off guard, but visible veins are usually nothing to stress about. Common causes include exercise (which increases blood flow), hot weather (making veins expand), or natural aging (as skin thins). Even pregnancy or hormonal changes can make veins more noticeable temporarily.
However, there are certain red flags to recognize. If new veins appear with pain, warmth, or swelling, it could indicate circulation issues needing medical attention. Similarly, web-like patterns on the chest or abdomen warrant a doctor’s visit. The good news? Most visible veins are just part of your body’s normal changes. When in doubt, a quick check with your healthcare provider can ease your mind.