Toenails, like fingernails, are made of a protein called keratin. They serve as a protective layer for the toes and can be indicators of overall health. Healthy toenails should be smooth, without pits or grooves, and consistent in color. However, toenails can become brittle, discolored, or split due to various factors. Understanding the underlying causes of toenail issues is the first step in addressing them effectively at home.

Several factors can lead to brittle and splitting toenails. Common causes include fungal infections, which can cause discoloration and thickening; trauma from ill-fitting shoes or injuries; and prolonged exposure to moisture. Nutritional deficiencies, particularly in biotin, zinc, and iron, can also weaken nails. Additionally, certain medical conditions like psoriasis or thyroid disorders can affect nail health.

Identifying the Symptoms of Toenail Damage

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