The main causes of peeling, dryness, and hardening of the fingertips

The main causes of peeling, dryness, and hardening of the fingertips are as follows: 1. **Fungal infection**: Particularly keratinized-type tinea manuum (hand fungus), long-term fungal infection of the finger skin can lead to thickening of the keratin layer, resulting in symptoms such as dryness, peeling, and skin hardening. This condition can be diagnosed through fungal testing and treated with antifungal medications. 2. **Chronic eczema**: When chronic eczema affects the fingers, prolonged unresolved inflammation can lead to keratinization, proliferation, and thickening of the local skin. This may damage the sweat and sebaceous glands beneath the skin, impairing the skin's natural moisturizing and protective functions, ultimately leading to dryness, peeling, and hardening of the fingertip skin. 3. **Vitamin deficiency**: A deficiency in B vitamins or other specific vitamins may also cause peeling of the hands, and in severe cases, can lead to dryness and cracking. 4. **Environmental factors**: Prolonged exposure to dry climates, frequent hand washing, or contact with irritants such as detergents and disinfectants may cause dryness of the fingertip skin, potentially leading to cracking. 5. **Allergic reaction to chemicals**: Dryness, peeling, and hardening of the fingertips may also result from contact with certain chemical substances, causing localized allergic reactions or damage to the skin tissue. Appropriate treatment measures should be taken based on the specific cause.