3. Discoloration (Blue, Purple, or Pale Feet)

A bluish or purplish tinge can signal low oxygen delivery.

Pale or ashen feet may indicate decreased blood flow.

4. Numbness or Tingling

Reduced circulation can cause pins-and-needles or numb sensations.

This may worsen with activity and improve with rest — a possible sign of peripheral artery disease (PAD), often linked with heart disease.

5. Sores or Wounds That Don’t Heal

Poor circulation may prevent the body from healing even small cuts.

Chronic ulcers or slow-healing wounds on the feet are a red flag, especially in diabetics.

6. Pain When Walking (Claudication)

Aching or cramping in the feet or calves during walking may indicate PAD.

This is a strong predictor of future cardiovascular events, including heart attacks.