Why Does Skin Itch in Winter? What Causes It?

Many people experience itchy skin during winter, causing significant discomfort. So why does skin itch in winter—and what causes it?

Why Does Skin Itch in Winter—and What Causes It?

Itching during winter may stem from conditions such as winter pruritus (cold-induced itching), xerosis (dry skin)–associated eczema, or ichthyosis. As temperatures drop, peripheral capillaries in the skin constrict, stimulating superficial sensory nerves and heightening peripheral nerve sensitivity—resulting in pruritus. This is a physical (i.e., external) factor.Another major cause involves intrinsic (internal) factors related to underlying systemic diseases—for example, pruritus commonly occurs in patients with diabetes mellitus or chronic kidney disease, particularly worsening during winter.

Human-related causes include excessive bathing during winter, use of strongly alkaline soaps or facial cleansers, and excessively hot bathwater—all of which strip the skin of its natural oils and trigger pruritus. Similarly, topical application of lipid-dissolving agents—such as alcohol—can also lead to cutaneous lipid depletion. Over-washing or using such degreasing agents predisposes individuals to dermatological issues, most commonly affecting the hands and face.

If pruritus becomes severe, prompt medical evaluation at a hospital is essential to avoid missing the optimal window for treatment. We hope this information has been helpful. Wishing you a joyful life and good health!