Multiple Sclerosis Symptoms (MS)

Muscle spasms and stiffness—known as spasticity—are very common in MS. They can cause limbs to lock, jerk, or twist involuntarily. Movements become rigid and uncomfortable, and pain often follows. At night, spasms may disturb sleep, leading to further fatigue. Some people feel as if their muscles are coiled tightly, making it difficult to stretch or relax the body even during rest.