It looks like you are using an older version of Internet Explorer which is not supported. We advise that you update your browser to the latest version of Microsoft Edge, or
consider using other browsers such as Chrome, Firefox or Safari.
An area of damage on tissue caused by injury or disease
As the story goes with medical terminology, lesions are a simple word with lots of moving parts. In general, a lesion is an area of damage on tissue caused by injury or disease. There are many types of lesions and they can range in size and severity. With MS, lesions appear on the brain and (sometimes) spinal cord—it’s these areas of damaged tissue that result in the signals from your brain not being properly delivered to the rest of your body.
Visit the Living Like You social channels to join the discussion and get the latest updates.