A general idea or understanding of something: the concept of inertia; the concept of free will. See Synonyms at idea. 2. A plan or original idea: The original concept was for a building with 12 floors. 3. A unifying idea or theme, especially for a product or service: a new restaurant concept.
Upper lip twitching is caused by a sudden involuntary contraction of the muscle or muscle fibers in the lips or as a result of direct stimulation or injury, according to Health Hype. Lip twitches also result from tics, spasms and tremors. They are usually benign, but sometimes indicate an underlying condition.
Common Causes: Twitching of the lip. Other Causes: Twitching of the lip. More Information About Twitching of the lip. List of 5 causes of Twitching of the lip. This section shows a full list of all the diseases and conditions listed as a possible cause of Twitching of the lip in our database from various sources. Medical Tools & Articles: Forums & Message Boards. I cannot get a diagnosis.