If you have these lines on your nails after 40, it could be a clear sign that your body is under stress — or something more serious.
Certain nail lines can be your body’s way of flagging internal issues. Here’s what they might mean:
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Horizontal lines (Beau’s lines): Could indicate a past illness, major stress, or a chronic condition like diabetes or circulation problems.
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Vertical ridges: Often normal with aging, but deep or uneven ones might point to nutritional deficiencies (like iron or vitamin B12).
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Dark streaks: Especially if they appear suddenly, this could signal melanoma — a serious form of skin cancer — and should be checked immediately.
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White lines (Muehrcke’s lines): Sometimes tied to liver, kidney, or low protein levels.
Bottom line: After 40, nail changes shouldn’t be ignored. If you notice unusual lines, it’s worth checking with a healthcare provider. Your nails might be telling you something your body hasn’t yet.
