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Why My Lips Twitching: Medical Causes, Neurological Triggers, and 2026 Treatment Guidelines

"Experiencing an involuntary movement around your mouth can be startling, leaving you to wonder why your lips twitching is happening and whether it points to a deeper health concern. Lip twitching, medically referred to as facial fasciculation or minor myokymia, involves the repetitive, involuntary contraction of the muscles surrounding the orbicularis oris. While most instances are harmless and fleeting, persistent spasms require a closer look at neurological, systemic, and lifestyle factors. Understanding the Anatomy of Lip Spasms The orbicularis oris muscle acts as a sphincter for the mouth, controlling lip closure, puckering, and articulat..."

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