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Important information related to nail health
Samira Vishwas | September 6, 2026 5:24 PM CST

Nail health and signs

We often associate nails only with their beauty and cleanliness. But, the problems going on in the body can be detected by the texture, color and thickness of the nails. Abnormal nail changes sometimes indicate serious health problems. According to experts, problems to lungs, iron deficiency, heart diseases and thyroid can be predicted through nails.

sign of melanoma

Brown or black lines that suddenly appear under the nails may be a sign of melanoma, a serious type of skin cancer. If any abnormal change is seen in the nails, one should be immediately alert.

expert opinion

Experts say that if the color of the nails is yellow, it can be a sign of nail infection. If the nails are yellowing as well as breaking or becoming thick, it is necessary to get checked by a doctor. One should not conclude any disease based only on the color of nails.

Liver and diabetes signs

The condition of the nails can give clues about the health condition of the body. White nails may be a sign of liver disease or diabetes. Very pale nails can be caused by anemia or blood loss. If the color of nails changes for a long time and it is accompanied by symptoms like fatigue or weakness, it is important to get checked.


brittle nails

Dry, thick or brittle nails can occur due to many reasons. The strength and thickness of nails may change in thyroid disease. Deep lines, called Beau's lines, form when nail growth stops or slows down.

dark lines and health

Brown or black lines under the nails can be caused by a number of common causes, but in rare cases they may also be a sign of melanoma. If you have such lines on your nails or their color and shape are changing, you should get checked by a skin specialist. Not every black line is a sign of cancer, but timely attention can prevent serious problems.


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