When to Worry About Suddenly Visible Veins: What Your Body May Be Telling You

When Purple Veins Indicate a Medical Condition

While visible veins are often harmless, in some cases, they may signal chronic venous insufficiency (CVI) — a condition in which blood does not flow properly back to the heart. According to Cleveland Clinic, CVI occurs when vein valves are damaged or weakened, leading to blood pooling in the legs over time.

Signs of Possible Circulation Issues

You should seek medical attention if purple or bluish veins are accompanied by symptoms such as:

• Persistent leg pain or aching

• Swelling in the ankles or lower legs

• A heavy or tired feeling in the legs

• Itching or skin changes around the veins

• Open sores or ulcers near the ankles

If left untreated, CVI can lead to complications such as skin thickening, chronic swelling, or venous ulcers. Early diagnosis and proper management can help prevent these complications.

How Purple Veins Are Diagnosed

Healthcare professionals typically diagnose varicose or spider veins through a physical examination and a review of medical history. In some cases, they may use duplex ultrasound, a noninvasive imaging test that checks the flow of blood and the structure of the veins. This helps identify whether there is valve damage or blood flow obstruction that requires treatment.

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