cause of swollen veins in feet
If you experience sudden swelling of your veins along with pain, ulcers, chest pain or shortness of breath, seek prompt medical care. This could be signs of a blood clot or peripheral vascular disease. Conditions That Cause Swollen Veins. Varicose veins. One common cause of swollen veins is varicose veins and spider veins. Varicose veins appear swollen and distorted, and are dark purple or blue in color. They can occur anywhere on the body but most often show up on the legs and feet.