Pay attention to the small signs on your body—they may be warning you about your health.
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1. Black lines appear on the nails

9 nail signs that show your body is having problems: White nails, black borders appear—be careful

If dark gray or black streaks appear on your nails, it may mean your body is lacking oxygen or that your heart and lungs are having issues. More seriously, it could be a sign of emphysema, and you should go to the hospital for a checkup.

2. Nails turn completely white

If your nails appear completely white, your liver may be having problems. This can be a sign of hepatitis or jaundice.

3. Rough or pitted nails

Healthy nails are usually smooth, without cracks or rough surfaces. If your nails become rough or pitted, it may be a sign of psoriasis or arthritis. In these cases, the nail color might remain normal, but the skin underneath the nail may change color.

4. Yellow nails

Yellow nails are not uncommon, but if your nails suddenly turn yellow, you should get checked, as it may be a sign of lung disease, thyroid problems, or psoriasis.

5. Ragged, bitten nails

Nails that are bitten unevenly may indicate constant anxiety or stress. Many people bite their nails to cope with psychological pressure, but this habit can lead to serious behavioral consequences.

6. Split or peeling nails

Peeling or splitting nails may be caused by a fungal infection or could be a sign of thyroid disease.

7. Black vertical streaks on the nails

Black stripes on the nails may indicate malignant tumors and could be a sign of one of the most dangerous forms of skin cancer. It’s best to go to the hospital as soon as possible.

8. Pale white nails

If the nails are pale white, it can be a concerning sign because healthy nails are usually pinkish. Sudden paleness may indicate liver problems or anemia.

9. Swollen nail folds

If the skin around your nails suddenly becomes abnormally swollen, it may be lupus or simply a common infection.