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Understanding Formication: Why You Feel Skin Crawling in 2026

"The sensation of skin crawling, medically known as formication, is a tactile hallucination where an individual perceives the sensation of insects or small creatures moving on or just under the surface of the skin. This article focuses on the clinical and neurological manifestations of formication and its associated triggers. Biological Mechanisms Behind Tactile Sensations Formication is classified as a paresthesia—a sensory distortion that occurs without an external physical stimulus. Unlike a common itch or a localized reaction to a dermatological allergen, this sensation originates within the peripheral nervous system or the central nervous..."

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