Risus Sardonicus

Risus sardonicus is a type of facial muscle spasm where a person appears to be smiling or grinning. It is an uncommon symptom that may be caused by a few disorders: tetanuslockjawĒ), tetany (hypocalcemia causing muscle spasms), Wilsonís disease ...

... More »


Causes of risus sardonicus (abnormal facial muscle spasm causing grinning or smiling) include:

... More Causes »

Related Articles

Related Symptom Topics

Read more about these related symptoms:

... More Symptoms »

Related Disease and Condition Topics

Read about these medical conditions related to Risus Sardonicus:

... More Diseases »

Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.