What causes dry, cracked skin with calluses on fingertips, and how to treat it?

In general, dryness, cracking, and formation of hardened skin on the fingertips may result from non-pathological factors such as dry skin, or pathological conditions such as tinea manuum (hand fungus) or dyshidrotic eczema. Management should be based on specific circumstances. Detailed analysis is as follows:

I. Non-Pathological Factors

If a patient has particularly dry skin on the hands, the stratum corneum (outer skin layer) may become cracked, leading to the development of hardened skin. Applying a moisturizing hand cream can help hydrate and nourish the skin.

II. Pathological Factors

1. Tinea Manuum (Hand Fungus)
Tinea manuum is usually caused by dermatophyte fungal infection and commonly presents with symptoms such as blisters, redness, or papulovesicular rashes. As the condition progresses, localized scaling may occur. Patients may use topical antifungal medications such as terbinafine hydrochloride cream or clotrimazole cream as directed by a physician. It is also advisable in daily life to consume more fresh vegetables and fruits.

2. Dyshidrotic Eczema
Dyshidrotic eczema may be associated with factors such as stress or fungal infection, and typical symptoms include small blisters, burning sensation, and pain. After the blisters are naturally absorbed, peeling of the skin typically occurs. Patients may follow medical advice to apply topical treatments such as salicylic acid ointment or urea cream. A light, balanced diet is recommended in daily life.

In addition, this symptom could also be caused by other factors such as eczema or vitamin deficiency. It is recommended that patients seek timely medical evaluation at a hospital.