What is this called? Why should a person stop....? -

What is this called? Why should a person stop....? -

A heavy smoker is having aching pains in the medial two fingers of both hands, the fingers become blanched and then blue. What is this called and why should they stop smoking?Well, you have a rare condition called Tetinuatis talk to your doctor about taking amenuestrual

What is this called? Why should a person stop....? -