Tongue muscle palsy is a common disease in life, so what are the causes of tongue muscle palsy, let’s take a look at the following: linguopharyngeal neuralgia Linguopharyngeal neuralgia is a paroxysmal severe pain that occurs in the region of the linguopharyngeal nerve division. The nature of the pain is very similar to that of trigeminal neuralgia and is divided into two categories: primary and secondary. The pain occurs on one side of the tongue, throat, tonsils, root of the ear and the posterior part of the jaw, sometimes with pain at the root of the ear as the main manifestation. Male cases are more common than female cases and usually develop after the age of 40 years Tongue diseases Tongue diseases include: map tongue, cracked tongue, hairy tongue, and median rhombic tongue. The map tongue appears as a filiform papillary exfoliation area on the back of the tongue, surrounded by a yellowish-white elevated rim, very wandering, usually without conscious symptoms, and not difficult to diagnose. Facial paresis, edema of the lip and fissured tongue syndrome was reported by Melkersson in 1928 and Rosental in 1930, so it is also called Melkersson-Rosental syndrome. Rosental syndrome. Lip-lingual edema and facial palsy syndrome Lip-lingual edema and facial palsy syndrome, also known as Melkersson-Rosenthel syndrome, has a rapid onset, with swelling of the face and tongue and paralysis of the swollen lateral muscles, often with a swollen tongue or a tongue with deep longitudinal fissures. The syndrome was first described by Melkersson (1928) and later by Rosenthel (1930) who found that in addition to swelling of the face and lips with paralysis of the facial muscles, there was also a longitudinal fissure on the surface of the tongue that resembled a scrotal skin wrinkle.