Pain
Redness
Warmth
Weakness
Numbness
Significant color changes
Sudden one-sided swelling can have several causes, ranging from injury or infection to vascular problems.
What About Bulging or Rope-Like Veins?
Some people develop veins that look unusually raised or twisted.
While varicose veins are much more common in the legs, superficial veins elsewhere can occasionally become enlarged.
If a hand vein has changed significantly in appearance—especially if it is painful or tender—it is worth having it examined.
Can Heart Problems Cause Visible Hand Veins?
Visible hand veins alone are not a typical sign of heart disease.
Heart conditions are much more likely to cause symptoms such as:
