Nausea after a concussion happens because the brain experiences a sudden injury that disrupts its normal functions. When the head is hit or jolted, the brain moves rapidly inside the skull, which can cause swelling and interfere with areas that control balance and digestion. This disruption often affects the vestibular system, responsible for balance, and stimulates the vagus nerve, which influences the stomach and gut sensations, leading to feelings of nausea or vomiting.
The brain’s response to the injury also triggers a stress reaction in the body, which can worsen nausea. This is why nausea is a common symptom immediately after a concussion and can sometimes persist for days. It signals that the brain is still healing and that the injury has affected multiple systems, including those that regulate how the body feels physically.
Nausea after a concussion is often accompanied by other symptoms such as headaches, dizziness, sensitivity to light and noise, and confusion. These symptoms together indicate that the brain is under stress and needs rest to recover. If nausea is severe, persistent, or accompanied by repeated vomiting, it is important to seek medical attention promptly, as these signs may indicate a more serious brain injury or complications.
Rest and avoiding physical or mental strain are crucial for recovery. The brain needs time to heal, and pushing through symptoms like nausea can prolong recovery or worsen the injury. In some cases, nausea may be part of post-concussion syndrome, where symptoms last for weeks or months, requiring further medical evaluation and treatment.
Sources
https://www.amenuniversity.com/blogs/news/concussion-warning-signs-5-symptoms
https://www.youtube.com/watch?v=OVGaBP8__eU
https://www.benrobertslegalgroup.com/slip-and-fall-stockton-california-nausea-after-falling-near-you/
https://www.tfhd.com/conditions/concussion/
https://completeconcussions.com/uncategorized/concussion-symptoms-early-signs/
