These black lines on fingernails may look like bruising or internal coloring - not like you just accidentally created an edgy ...

A black line on your nail (medically known as ... or pinker than your normal skin tone A crack or split down the middle of the nail Onycholysis, which causes the nail to lift away from the nail ...

this black line in my nail was coming from inside the growth plate down from inside my nail.” The cause was melanoma — which VeryWell Health explains is “not as common as other forms of skin ...

this black line in my nail was coming from inside the growth plate down from inside my nail.” “The melanoma was in the growth plate [in my thumb] down to my first knuckle,” explains Tagliamonte. She ...