Historical Examples. 1  What between the blow of the cougar and the force of the fall, the big-horn was dead. 2  Two Arrows wiped the blood of the cougar from the blade of his lance. 3  But now the hounds were too quick, and in a trice they had the cougar surrounded. 4  No cougar stalking its prey could have been more lithely wary.
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. 1  Gastric resection with gastrojejunostomy. 2  Hypocalcemia. 3  Ileostomy formation.  Multiple blood transfusions.
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.