Multiple sclerosis (MS) is one of the most prevalent autoimmune and neurodegenerative disorder of the CNS, affecting 0.1% of the population living in high-prevalence areas.

Late-onset MS happens when symptoms show up when you’re around 40 or older. Find out the symptoms, how it’s diagnosed, and what you can do to treat it.

More information: Jing-Ping Lin et al, 4D marmoset brain map reveals MRI and molecular signatures for onset of multiple sclerosis–like lesions, Science (2025). DOI: 10.1126/science.adp6325 ...

Multiple sclerosis (MS) is classified into different types and progressive stages of the disease. Learn more about each type and their characteristics.

Using an animal model of multiple sclerosis (MS), researchers at the National Institutes of Health (NIH) have created a four-dimensional brain map that reveals how lesions similar to those seen in ...

Multiple sclerosis (abbreviated MS, also known as disseminated sclerosis) is a chronic, inflammatory disease that affects the central nervous system (CNS). MS can cause a variety of symptoms ...

Multiple sclerosis (MS) is a long-term disease where the immune system mistakenly attacks the protective layer around nerve cells, known as the myelin sheath. This leads to nerve damage and ...

Typically, people are diagnosed with multiple sclerosis (MS) between the ages of 20 and 40, but late-onset MS (LOMS) begins to affect people ages 50 and older. The disease’s progression is ...

Could a microorganism play a role in triggering autoimmunity in MS? This review investigates a possible causal role for a subspecies of Mycobacterium avium as an etiologic agent in MS.