I have a question - Can Raynaud’s syndrome cause nails to turn black? Ed’s note ... It has been described more among people living in colder climates or cold weather conditions.

People with Raynaud’s experience “extreme” narrowing and closure of the blood vessels to the fingers or toes, which stops the blood flow to them. That turns those fingertips and toes white ...

Noting the white and bluish hues on her hands and feet, he told her she likely had a condition called Raynaud’s syndrome. In people with Raynaud’s syndrome, sometimes called Raynaud’s ...