Brain lesions are areas of damaged brain tissue that show damage from injury or disease. They can be caused by a variety of factors, including injury, infection, exposure to certain chemicals, problems with the immune system, and more. The most common way to detect brain lesions is with diagnostic imaging scans such as magnetic resonance imaging (MRI) or computerized tomography (CT) .

Symptoms of a brain lesion vary depending on the type, location, and size of the lesion. Common symptoms include weakness, disruption of one or more senses, confusion, and more. Brain lesions can disrupt the way your brain works, causing a wide range of symptoms.

Depending on the cause, some types of brain lesions will heal on their own or are treatable. However, some brain lesions are permanent or happen for reasons that can’t be treated or cured. Brain lesions can indicate a severe or even life-threatening issue, such as a stroke, which is a time-sensitive medical emergency. If you think someone with you is having a stroke, call 911 or your local emergency services number.

In summary, brain lesions are areas of damaged brain tissue that can be caused by a variety of factors. Symptoms vary depending on the type, location, and size of the lesion, and some types of brain lesions are permanent or untreatable. If you suspect someone is having a stroke, it is important to seek medical attention immediately.