brain, spinal cord, and nerve disorders
Hypoglossal Nerve Disorders
Symptoms of Hypoglossal Nerve Disorders
The tongue becomes weak on the affected side and eventually wastes away (atrophies). As a result, people have difficulty speaking, chewing, and swallowing. Damage due to amyotrophic lateral sclerosis causes tiny, subtle twitching movements (fasciculations) on the surface of the tongue. 