Benign fasciculation syndrome

Benign fasciculation syndrome
Other names	Fasciculation Not Otherwise Specified
Animated image of benign fasciculation syndrome in the upper eyelid of a 19-year-old male. Symptoms subsided several days later.
Specialty	Neurology, psychiatry
Prognosis	Good–excellent

Benign fasciculation syndrome (BFS) is characterized by fasciculation (twitching) of voluntary muscles in the body.^[1] The twitching can occur in any voluntary muscle group but is most common in the eyelids, arms, hands, fingers, legs, and feet. The tongue can also be affected. The twitching may be occasional to continuous.^[2] BFS must be distinguished from other conditions that include muscle twitches.