
28/08/2025
Noticing bulging veins after the gym?
For many people, more prominent veins post-workout are normal - especially in the arms or legs after strength training or cardio.
Dr Jason Toniolo, Vascular Surgeon and Director at The Art of Vein Care, says this effect is usually temporary and harmless.
“Veins may become more visible during exercise due to increased blood flow and muscle pump activity. This is known as ‘vascularity’ and is especially common in people with lower body fat.”
During physical activity, the body sends more blood to working muscles. Veins closer to the surface dilate to accommodate the increased flow, making them appear more pronounced.
A 2023 study in the European Journal of Vascular and Endovascular Surgery found that athletes often have larger superficial and deep veins, likely as an adaptive response to exercise rather than true varicose veins.
The study also observed a higher incidence of venous reflux in exercisers (about 21% vs. 6% in controls), though this reflux was mostly limited to certain superficial veins, and its clinical significance remains unclear.*1
So when should one worry about prominent veins?
"If veins stay enlarged long after rest or come with symptoms like aching, swelling, or skin changes, this may indicate venous reflux," says Dr Toniolo.
Essentially this means the veins have difficulty sending blood back to the heart, leading to blood pooling in the leg veins, which can cause pain or aching legs, varicose veins and skin changes.
“This is even more important for people with visible or symptomatic veins, especially if they have a family history or stand for long periods”.
Ultrasound for all arterial scans and varicose or spider vein scans are bulk-billed at our Gregory Hills and Wollongong Clinics.
To learn more, visit theartofveincare.com.au or call 1300 834 622
All surgical procedures carry risk. Speak to your doctor about your symptoms. All results are individual.
*1 Vanrij, A., Thomas, K., Exercise, Bulging Veins and Venous Disease. . 2023;66(6):864-865. https://www.ejves.com/article/S1078-5884(23)00723-2/fulltext
We provide Miradry and minimally invasive treatments for varicose veins and spider veins. Locations in Gregory Hills, Wollongong and Orange.