This condition—also called Raynaud's disease ... Can a vitamin deficiency cause blue nails? A vitamin B12 deficiency can cause bluish discoloration of the nails or blue-black discoloration ...

In some cases, Beau’s lines may be associated with conditions like diabetes or even a recent bout of a serious illness, such as pneumonia. When your nails turn blue or purple, it is a clear sign ...

A condition that can be picked up through ... in colour from a healthy pink to pale white, yellow, or blue. This is because our nail beds get skin-like colour from our blood flow.

But for 2021 there’s a new shade staking its claim on the season. Cobalt blue nails have recently taken over our Instagram feeds and if there’s one thing for sure, we’re into it. From ...