Medically reviewed by Brigid Dwyer, MD Key Takeaways Clonus causes involuntary, rhythmic muscle contractions when a muscle is stretched.It is often observed in conditions like multiple sclerosis, ...

Clonus reflex is a set of rhythmic, involuntary muscle movements. It is a neurological condition that affects the nerve cells that control muscle movements. Damage to the nerves, as in clonus, causes ...

Clonus, or the clonus reflex, is a neurological condition that results from damage to the nerve cells that control muscles. It can cause involuntary contractions, spasms, pulsing, tightness, and pain ...

Clonus is a rhythmic movement of your ankle and foot during pregnancy. It’s often an early symptom of severe preeclampsia and a medical emergency. Clonus, a rhythmic movement of your foot and ankle, ...