Split fingernails: What causes them?
What causes split fingernails? Can the splitting be prevented?
- Becky / No state given
Mayo Clinic dermatologist Lawrence Gibson, M.D., and colleagues answer select questions from readers.
Answer
Split fingernails are typically a result of repetitive or prolonged contact with water — think dishwashing and tub baths, for example. Nail polish remover also can contribute to split fingernails. Split fingernails usually aren't a sign of vitamin, mineral or other nutritional deficiencies.
To prevent split fingernails, treat your nails gently:
- Wear cotton-lined rubber gloves when using soap and water for prolonged periods or when using harsh chemicals.
- Avoid long soaks in the tub.
- Repair fingernail splits or tears with nail glue or clear polish.
- Use nail polish remover no more than twice a month. If you polish your nails, touch up the polish in the meantime. When you do use nail polish remover, avoid those that contain acetone.
- Limit manicures.
- Rub moisturizing lotion into your fingernails after washing your hands and after removing nail polish.
- Keep your fingernails neatly trimmed. Round the tips in a gentle curve.
If the splitting doesn't improve or you're concerned about your split fingernails, ask your doctor for additional suggestions.

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