IE 11 is not supported. For an optimal experience visit our site on another browser.

Drooling on your pillow, streaks on your nails: Is it normal?


Kicking off a new TODAY series called “Is It Normal?” NBC News medical contributor Dr. Natalie Azar explains which symptoms to pay attention to and which you can safely ignore, including drooling on your pillow (normal) and black vertical streaks on your nails (it could be a sign of melanoma: consult your physician).