03/23/2026
What happens when a brain injury occurs? When the brain is injured, swelling can cause it to take up more space inside the skull, increasing pressure. This can lead to bruising or blood clots, and in some cases, blocked cerebrospinal fluid, causing the brain’s spaces to expand.
Increased intracranial pressure is a major concern, as it can prevent blood from reaching brain tissue, leading to further damage. A traumatic brain injury also can disrupt the brain’s chemical balance, affecting how neurons communicate. This can result in changes to thinking, behavior, and overall brain function, though recovery often happens as the brain stabilizes.
These changes can lead to confusion or agitation. In severe cases, brain injury may cause issues with speech, vision, or muscle strength.
