A concussion is a mild traumatic brain injury from a jolt or blow to the head or body. This impact causes the brain to move rapidly within the skull, temporarily affecting its normal function. Its effects are often short-term, influencing how the brain processes information and controls bodily functions. This injury can occur from various incidents, not just direct head trauma.
Vomiting as a Concussion Symptom
Vomiting or nausea can occur as a symptom of a concussion, though it may not happen immediately. While some experience these symptoms shortly after impact, they can also be delayed, appearing hours or even days later. The presence of vomiting, especially if repeated, is a notable sign that warrants attention after a head injury.
Nausea and vomiting after a concussion are linked to the brain’s response to the injury. The rapid movement of the brain inside the skull can disrupt the normal functioning of brain regions responsible for regulating these sensations. Additionally, an imbalance in the vestibular system, which controls balance and spatial orientation, can contribute to feelings of dizziness and motion sickness-like nausea. While vomiting can be a symptom, its absence does not mean a concussion has not occurred, as many concussions do not involve this specific symptom.
Other Common Concussion Indicators
Other symptoms can indicate a concussion, affecting physical, cognitive, emotional, and sleep functions. Physical indicators often include headaches or a feeling of pressure in the head, dizziness, and problems with balance. Sensitivity to light and noise is also common, along with blurred or double vision. Some individuals might also experience ringing in the ears or neck pain.
Cognitive changes can manifest as confusion, memory issues, or difficulty concentrating. They might feel “foggy” or slowed down, struggling with tasks requiring attention or focus. Emotionally, a concussion can lead to irritability, anxiety, or mood swings. Sleep patterns can also be affected, with individuals experiencing fatigue, difficulty falling or staying asleep, or sleeping more than usual.
When to Seek Medical Attention
Any suspected concussion warrants a medical evaluation for proper diagnosis and management. While many concussions are not life-threatening, it is important to be aware of specific “red flag” symptoms that indicate a more serious underlying injury requiring immediate emergency care. These signs suggest potential complications such as bleeding or swelling in the brain.
Immediate medical attention is necessary if symptoms include:
A headache that worsens or does not go away
Repeated vomiting
Seizures
Loss of consciousness, even if brief
Slurred speech
Significant confusion
Weakness or numbness in the arms or legs
Unequal pupil size
Clear fluid draining from the nose or ears