Symptoms include:
CVI is more popular in older adults and people who stand or sit for long periods. Left untreated, it can cause serious complications like leg ulcers or blood clots.

Varicose veins are a popular vein disorder that can cause veins—particularly in the legs and sometimes in the arms—to become visibly swollen and twisted. While often considered a cosmetic issue, they may also signal underlying vein dysfunction.
You may spot:
DVT is a serious condition where a bl00d clot forms in a deep vein, typically in the leg or thigh. Though the clot is not always visible, some cases may lead to prominent or bulging surface veins because of blocked blood flow.
Warning signs include:
DVT is potentially life-threatening because a clot can travel to the lungs (pulmonary embolism). Immediate medical attention is required.