你健康吗？医生告诉你指甲揭示健康的秘密

5、Vertical lines, however, are generally not such a big deal. Some people are more genetically prone to them than others, but they're commonly associated with aging. Occasionally they may appear in malnourished people.
然而出现纵线却不是大问题。一些人更容易因遗传而获得这种症状，但是这种症状多与衰老相关。营养不良的人偶尔也会有这种症状出现。

6、When people are iron-deficient, their nails can turn spoon-like, according to Derick. Instead of curving down and covering the finger normally, they'll start to rise up on the sides and front, going from the normal convex shape to a more concave shape, like the part of a spoon that holds liquid.
德里克指出，缺铁的人，指甲会变得像勺子。与正常指甲向下包住指尖的形状不同，缺铁的人指甲前端和两侧会向上翘起，形成凹面，就像能盛水的勺子前端。

7、Kidney and liver problems can create "half-and-half nails," where one part of the nail is white and the other part dark or pink, according to Derick. Kidney and liver problems frequently cause discoloration that shows up in nails and skin.
德里克指出，肾病和肝病会引起“对半两色甲”，指甲的颜色一半白，一半粉色或黯淡无光。肾病和肝病常会引起指甲和皮肤变色。

8、A nail that lifts up out of the nail bed can also indicate kidney or thyroid issues, says Derick. Many thyroid problems and autoimmune diseases like Graves or lupus create complications that dermatologists notice while examining patients.
德里克还说，指甲从甲床上脱出说明人体患有肾病或甲状腺疾病。皮肤科医生在为病人检查时发现，许多甲状腺疾病和自身免疫病（如格雷夫斯病或红斑狼疮）都伴随此类症状。

Doctors note that because disease diagnosis is complex and some symptoms can be associated with different diseases, you should always see a medical professional if you are concerned about something you notice.
医生指出，由于疾病诊断复杂，且一些症状可能表征着不同的疾病，如果你很在意自身存有的一些症状，还是看看专业医师吧。