Hemifacial spasm is a condition that causes the muscles on one side of your face to twitch (or spasm). These twitches can't be controlled and are usually painless.
In some cases, there is no known cause, but causes may include:
- A blood vessel touching a facial nerve
- Facial nerve injury
- Tumor
Potential treatments include:
- Botox injections
- Anticonvulsant drugs
- Decompression surgery
- Radiofrequency thermocoagulation