Different conditions can affect the nerves serving the lip muscles. These include the facial nerve (cranial nerve 7) and the trigeminal nerve (cranial nerve 5) which run along both sides of your face.

Plump, pouty lips are everywhere – from social media filters to celebrity red carpets. But behind the glossy aesthetic of lip ...

Lip twitching may not always be serious, but when it's persistent or paired with other symptoms, it deserves medical ...

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Neda Tahmasebifard, an assistant professor in the speech and language pathology department at Saint Mary’s College, researches the cleft lip and palate condition.

This is a problem, because lips are delicate and highly mobile. They contain very little natural fat and rely on a ring of tiny muscles to express everything from joy to concern. Injecting too ...