Both hyperthyroidism and hypothyroidism can cause brittle nails. If you suspect your thyroid might be the issue, a simple blood test can help diagnose these conditions, and appropriate treatment can be administered.
Psoriasis
Fungal Infections
Fungal infections can damage the nail bed and cause nails to become brittle and split. Antifungal treatments are effective in resolving these infections.
5. Physical Stress
Repeated physical trauma, like using your nails as tools, can cause immediate and long-term damage. Keeping nails trimmed and avoiding using them inappropriately can prevent splits and breaks.
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