Why your fingers wrinkle in water (and what it can reveal about your health)

undefined 24, 2025

Source: bbci

Fingertip wrinkling in water is caused by nerve signals that constrict blood vessels, not just skin swelling. This adaptation likely evolved to improve grip on wet surfaces, similar to tire treads. Research shows wrinkled fingers help us handle wet objects more easily and use less force. The pattern and speed of wrinkling can also indicate health issues like diabetes, nerve damage, or cardiovascular problems, making it a useful tool for diagnosing certain conditions.

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