4. Small White Dots On Fingernails
Small white dots on the surface are usually due to injury or trauma and usually fade away in a few days. But in case, they do not vanish in a few days, you should see a dermatologist.
5. Sideways Grooves
In case, your nails suffered a major injury or trauma recently, these grooves should not be a cause for major concern. But in extreme cases, they can also signal major health complication such as heart disease.
6. Dark Vertical Bands
Lines of dark color could mean anything – a harmless mole or a sign of a potent skin cancer, melanoma.