Blue veins running through a enlarged knee

Close up of a leg with varicose veins. Varicose veins form due to defective valves in the veins of the legs, which usually prevent blood circulating to the feet.

Size: 3386px × 5100px
Photo credit: © Medicshots / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: blue, enlarged, knee, large, leg, saphenous, sclerotherapy, swell, swelling, swollen, varicose, vein, veins