What Causes Itchy Skin During Winter?

During winter, cold weather and dry air—exacerbated by wind—strip moisture from the skin, often leading to sensations of tightness, dryness, flaking, and even pruritus (itching).

What Causes Itchy Skin in Winter?

1. Seasonal Factors

Winter is inherently a dry season. Moreover, low temperatures cause skin pores to constrict, reducing sebum secretion. With diminished natural oil protection, the skin becomes increasingly dry, and its underlying nerve endings become more sensitive—triggering dryness, flaking, and itching.

2. Skin Infections

Individuals frequently staying in crowded environments—such as hostels or boarding schools—are at higher risk of infection-related pruritus. Intense nocturnal itching is common, sometimes severe enough to cause excoriations from scratching. Importantly, unexplained pruritus may also be an early symptom of systemic diseases, including diabetes mellitus, renal insufficiency, cholestasis, hyper- or hypothyroidism, hematologic disorders, or malignancies.

3. Clothing Materials

Many elderly individuals, accustomed to frugality, continue wearing worn or low-quality garments that may irritate the skin and provoke pruritus. Prolonged use of such clothing can worsen symptoms: skin inflammation further compromises the epidermal barrier, rendering already-dry skin hypersensitive to external irritants.

The above outlines the primary causes of winter-onset pruritus. We hope this information proves helpful.