Question: My fingernails crack and splinter all the time. What's causing this and is there anything I can do about it?
Dr. Hibberd's answer:
Fingernails are often overlooked as clues to underlying disorders, but when they crack and splinter, it's hard not to notice. But the cause or cracked and splintered nails are numerous.
Our nails are very absorbent, so having your hands in water a lot can cause cellular strain by expansion and contraction that can contribute to cracking and splintering. Failing to protect your nails from humidity also stresses nails and contributes to cracking and splintering from repeated drying effects.
Detergents and harsh chemicals, such as acetone-based nail polish removers, can also dry out nails. Chronic brittle nails are commonly seen in jewelers who use solvents and cleaners during the course of their work.
But sudden brittleness of nails not exposed to repeated moisture, nail polish, or chemicals may reflect an underlying health disorder such as anemia, a thyroid problem, or a genetic condition or deficiency.
The bottom line: It would be wise to see your doctor if you are not sure of the cause. In the meantime, protect your nails as you would your skin. Stop using artificial nails, nail art adhesives, and nail polish until your nails and avoid harsh solvents.
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