Raynaud's Disease

 


Thanks to modern technology (iphone) a picture is worth a thousand words in diagnosing a condition.  This young woman had been exercising outside by the Golden Gate Bridge in San Francisco (temp a chilly 49º F) and when she finished her hand looked like this.  It felt numb and began stinging when she ran hot water on it.

What is seen is classic Raynaud's disease.  It is a condition that