Why are your veins suddenly bulging and visible?

What Bulging Veins May Be Telling YouBulging veins aren’t always a sign of danger, but they can sometimes indicate an underlying medical issue. Understanding why veins become more visible is important for recognizing potential health concerns.Common causes include excessive exercise, aging, hot temperatures, tight clothing, genetics, sun exposure, and being overweight. In some cases, bulging veins may be harmless, but if they appear with discoloration, it’s best to consult a healthcare provider.