What is a common symptom of MS that affects motor functions?

Muscle weakness is a prevalent symptom in individuals with multiple sclerosis (MS) that significantly affects their motor functions. This weakness can arise due to the demyelination of nerve fibers in the central nervous system, leading to impaired signals between the brain and muscles. As a result, patients may experience difficulty in performing everyday tasks requiring strength and coordination, such as walking, climbing stairs, or lifting objects.

In MS, muscle weakness can be accompanied by spasticity, which further compromises mobility and functional independence. The pathophysiology of MS involves inflammation and subsequent damage to the myelin sheath that insulates nerve fibers, disrupting normal communication and causing various motor function impairments. Understanding this symptom is essential for managing and rehabilitating patients with MS to improve their quality of life and functional abilities.