Black or dark lines can develop on your nails for many reasons. Causes include regular pigmentation changes, injury, certain medications, and underlying conditions like melanoma or hyperthyroidism.

Do you know why you see lines on your nails Read this article to find out. ... According to a 2015 study, vertical ridges in fingernails occur in the elderly due to slow cell turnover.

Reading up on internet getting conflicting answers on this from form of melanoma (seek urgent medical advice) to its a freckle or hormonal (relax). Should I be worried? Only one nail has it, have had ...

“If you have a dark-pigmented vertical streak going down your nail, this should be checked,” Dr. Lindsey Zubritsky, a Mississippi-based dermatologist warned her 1.6 million TikTok followers.

“If you have a dark-pigmented vertical streak going down your nail, this should be checked,” Dr. Lindsey Zubritsky, a Mississippi-based dermatologist warned her 1.6 million TikTok followers.

“If you have a dark-pigmented vertical streak going down your nail, this should be checked,” Dr. Lindsey Zubritsky, a Mississippi-based dermatologist, warned her 1.6 million TikTok followers.

What started out as a “tiny little brown line” on one woman’s fingernail led to a rare, potentially life-threatening medical condition, one that she’s now trying to help oth… ...

“If you have a dark-pigmented vertical streak going down your nail, this should be checked,” Dr. Lindsey Zubritsky, a Mississippi-based dermatologist warned her 1.6 million TikTok followers.

What started out as a “tiny little brown line” on one woman’s fingernail led to a rare, potentially life-threatening medical condition, one that she’s now trying to help oth… ...

“If you have a dark-pigmented vertical streak going down your nail, this should be checked,” Dr. Lindsey Zubritsky, a Mississippi-based dermatologist warned her 1.6 million TikTok followers.

“If you have a dark-pigmented vertical streak going down your nail, this should be checked,” Dr. Lindsey Zubritsky, a Mississippi-based dermatologist warned her 1.6 million TikTok followers.

What started out as a “tiny little brown line” on one woman’s fingernail led to a rare, potentially life-threatening medical condition, one that she’s now trying to help oth… ...