If you’re creating an informative health post, a safer and more accurate framing is that blocked arteries (atherosclerosis) can cause few or no symptoms until blood flow is significantly reduced.
10 warning signs worth taking seriously
- Chest pressure or pain — especially with exertion; this can indicate reduced blood flow to the heart.
- Shortness of breath — particularly during activity.
- Unusual fatigue — especially when it occurs with exertion or other heart symptoms.
- Pain, aching, or cramping in the legs when walking that improves with rest (intermittent claudication).
- Coldness in one foot or leg compared with the other.
- Numbness or weakness in a limb, particularly if it develops suddenly.
- Slow-healing wounds on the feet or legs, which can occur with poor circulation.
- Sudden trouble speaking, facial drooping, or weakness on one side — possible stroke symptoms.
- Sudden vision loss or major vision changes — potentially related to reduced blood flow.
- Erectile dysfunction, which can sometimes be associated with blood-vessel disease.
Don’t wait on emergency symptoms. Chest pain/pressure, severe shortness of breath, sudden weakness or numbness, trouble speaking, or sudden vision loss warrants immediate emergency medical care.
Also, these symptoms don’t necessarily mean an artery is blocked—there are many possible causes. A healthcare professional can determine whether testing for cardiovascular or peripheral artery disease is appropriate.
