Singer Céline Dion was recently diagnosed with a rare disorder that causes severe muscle spasms. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Spastic cerebral palsy is a disorder that involves muscle stiffness. Symptoms and signs may include difficulty walking, trouble manipulating objects, and vision, hearing, or speech challenges.

First-in-class antispastic drug candidate to reach clinical phase is published in the prestigious life science journal, Cell. Drug candidate MPH-220 could mean new hope for millions of patients ...

In cerebral palsy (CP), the spastic motor type is most common, associated with a velocity-dependent increase in muscle stiffness that precedes the development of fixed muscle contracture. In ...

Symptoms of spasticity — including chronic muscle stiffness, pain, and jerkiness of voluntary movements — can interfere with your daily activities. Left untreated, these symptoms may significantly ...

Stiff person syndrome (SPS) is a rare neurological disorder that involves muscle spasms and rigidity. Heightened sensitivity to touch, noise, emotional distress, and other stimuli can trigger symptoms ...

Muscle relaxers help reduce muscle stiffness and pain from conditions like cerebral palsy and lower back pain. There are two main types of muscle relaxers: antispastics and antispasmodics. Muscle ...

For many individuals living with multiple sclerosis (MS), muscle spasticity, an often painful and limiting symptom, can be one of the most persistent and frustrating aspects of the disease.

A twitch is a small, involuntary contraction and relaxation of a muscle or group of muscles. Medication side effects, physical exertion, fatigue, and excessive caffeine can all cause twitching in the ...

‌Hemifacial spasm is a disorder of the nerves and muscles that causes nonpainful involuntary twitching on one side of the face. Many people refer to hemifacial spasms as lip muscle spasms. Hemifacial ...