What causes deep painful splits on the tips of the fingers in winter?
1. Introduction and Direct Answer Deep, agonizingly painful splits on the tips of the fingers during winter are primarily caused by a catastrophic failure of the epidermal barrier due to severe environmental desiccation and lipid depletion. The combination of frigid outdoor air, plummeting ambient humidity, and indoor forced-air heating aggressively flash-evaporates the essential moisture from … Read more