What is lip trembling? People should know

Speaking of lip tremors, it is actually the twitching of the lips, which is quite common. The main reason for this is facial spasm, which means that there is an abnormal problem with the face. This situation will cause people to be nervous and have a great impact on their life and work. Therefore, people should learn more about what lip tremors are so that they can get correct treatment.

1. Symptoms and Signs

Hemifacial twitching refers to the paroxysmal painless contraction of the muscles innervated by the facial nerve. The first symptom often begins with a slight twitch of the orbicularis oculi muscle of the lower eyelid, gradually spreading upward to all the orbicularis oculi muscles, and then to the lower facial muscles, especially the corners of the mouth. In severe cases, the entire facial muscles and the ipsilateral platysma muscles may spasm. Severe spasm of the orbicularis oculi muscle may make it impossible to open the eyes, thus affecting walking and work, and may be accompanied by mild weakness and muscle atrophy. It worsens when you are stressed, tired, or exercising on your own, and disappears during sleep. Facial muscle twitching is not accompanied by pain, and voluntary contraction of facial muscles is generally not affected when there is no facial muscle twitching.

2. Pathological causes

The cause of hemifacial twitching is not clear, it may be caused by ectopic excitation or pseudo-synaptic transmission of the facial nerve. In recent years, there have been reports both at home and abroad that surgical and autopsy materials have confirmed that facial muscle spasm is caused by some kind of compression that causes pathological interference in the conduction of the facial nerve. The vast majority of patients suffer from cross-compression of normal blood vessels, such as the posterior inferior cerebellar artery, anterior inferior cerebellar artery, and vertebral artery.

3. Disease Diagnosis

Need to be differentiated from the following diseases:

1. Functional blepharospasm occurs in elderly women, often bilaterally, without twitching of the lower facial muscles.

2. Habitual tics often occur in children and young people, often presenting as obvious muscle contractions and are related to mental factors.

3. Meige syndrome is also called blepharospasm-oromandibular dystonia syndrome, which is characterized by bilateral blepharospasm, accompanied by dystonia of the mouth, tongue, facial muscles, mandible, laryngeal and cervical muscles. It is more common in elderly women.

4. Neuropsychiatric inhibitors cause facial dyskinesia