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Doctor reviewing brain scans for possible signs of a traumatic brain injury.
Legal Insights | | 5 min

What Are the Subtle Signs of a TBI?

By Ross Cellino

The subtle signs of a TBI can be easy to overlook after a car accident, fall, or other traumatic event. A person may think they’re fine but notice small changes in how they feel, sleep, or complete everyday tasks.

A traumatic brain injury, or TBI, can happen after a blow or jolt to the head. It can also result from an impact to the body that causes the brain to move inside the skull. You don’t have to lose consciousness to experience a concussion or another mild TBI. 

If you believe another person’s negligence caused your injury, schedule a free case evaluation online or call us at 888-888-8888 to speak with a member of our team.

Key Takeaways for Recognizing a TBI

  • Mild traumatic brain injury symptoms may affect memory, mood, sleep, vision, and balance.
  • Symptoms of a TBI may begin hours or days after an accident.
  • A person does not need to lose consciousness to have a TBI.
  • A healthcare professional should evaluate new or worsening symptoms.
  • Certain warning signs require emergency medical attention.

Why Can a TBI Be Difficult to Recognize?

A mild TBI is commonly called a concussion. While the injury may be classified as “mild”, its symptoms can still affect a person’s health and daily life and should not be ignored. 

Some hidden signs of a brain injury may resemble stress, fatigue, or soreness after an accident. The injured person may not connect these changes to the impact. Friends, coworkers, or others who spend time with the person may notice the differences first.

Symptoms can also change throughout recovery. For example, someone may experience nausea shortly after an accident but develop sleep problems or emotional changes several days later.

Changes in Thinking and Memory

Changes in memory, focus, and thinking are common signs of a TBI. They may affect work, school, driving, or routine responsibilities.

Possible symptoms include:

  • Forgetting recent conversations
  • Having trouble finding the right words
  • Feeling mentally foggy or slowed down
  • Struggling to follow instructions
  • Taking longer to make decisions
  • Having difficulty concentrating

A person may also repeat questions or have trouble remembering what happened before or after the accident. These changes may seem minor at first but become more noticeable during everyday activities.

Mood and Personality Changes

A brain injury can affect a person’s mood, reactions, and behavior. These symptoms may be mistaken for a normal response to a stressful accident.

Watch for changes such as:

  • Increased irritability
  • Unusual anxiety or nervousness
  • Sudden sadness
  • Stronger emotional reactions
  • Loss of interest in regular activities
  • Feeling overwhelmed by noise, crowds, or conversations
  • Acting differently in social situations

These changes don’t always appear right away. They may develop or become more noticeable during recovery.

Unusual Fatigue or Sleep Problems

A traumatic brain injury can also change a person’s sleep patterns. They may sleep more or less than usual, have trouble falling asleep, or wake up several times during the night.  

They may also feel tired even after getting enough sleep. Everyday activities can take more energy than they did before the injury. 

Fatigue may also make symptoms such as memory problems, difficulty concentrating, mood changes, and balance issues more noticeable. 

Sensory and Physical Symptoms

Not every brain injury causes an intense headache. Physical symptoms can be mild, inconsistent, or difficult to describe.

Hidden signs of brain injury may include:

  • Sensitivity to light or sound
  • Blurred or double vision
  • Ringing in the ears
  • Mild dizziness
  • Nausea
  • A strange taste in the mouth
  • Feeling unsteady when walking
  • Headaches that come and go

These symptoms may be confused with dehydration, medication side effects, or general soreness after an accident. A healthcare professional can help determine what may be causing them and whether further care is needed. 

Can TBI Symptoms Be Delayed?

Delayed TBI symptoms may appear hours, days, or even weeks after an injury. Some people feel fine at first and begin noticing changes later on. 

After an accident, track headaches, sleep changes, mood shifts, memory problems, and other symptoms. This can give your healthcare provider a clearer picture of how your symptoms are developing and affecting your daily life.

When Should You Seek Emergency Care?

Call 911 or go to an emergency department when a person develops serious warning signs after a head injury.

Emergency symptoms may include:

  • A headache that becomes worse or will not go away
  • Repeated vomiting
  • Seizures or convulsions
  • Slurred speech
  • Weakness, numbness, or poor coordination
  • Increasing confusion
  • One pupil that is larger than the other
  • Extreme drowsiness or an inability to wake up
  • Loss of consciousness

These symptoms may indicate bleeding, swelling, or another serious problem involving the brain and need to be evaluated as soon as possible.

What Should You Do After a Possible Brain Injury?

If you think you may have a TBI, seek medical attention as soon as possible. A healthcare provider can evaluate your symptoms, learn about how the injury happened, and recommend the next steps for your care.

Be sure to follow your provider’s treatment recommendations and attend any follow-up appointments. You should also avoid activities that could lead to another head injury until a medical professional says it’s safe.

Keep copies of accident reports, medical records, photos, and notes about missed work. These records may be helpful if another person or business caused your injury.

Speak With a Personal Injury Attorney

A TBI can affect many parts of a person’s daily life, including their health, work, and independence. Since symptoms may not appear right away, it’s important to watch for changes after an accident and seek medical care when needed.

If another party’s negligence caused the accident, you may have the right to pursue compensation for medical expenses, lost income, pain and suffering, and other losses. Schedule a free case evaluation online or call us at 888-888-8888 to speak with a member of our team.

Content checked by the personal injury attorney Ross Cellino

Ross Cellino

As a family man and a trial attorney, I pride myself on winning cases and serving the community. With over 35 years of experience, I understand the function of a jury, how juries arrive at conclusions, and the role that the jury plays in administering justice. I know how to win cases. You can find us in ManhattanBuffaloMelvilleRochesterBrooklynThe BronxQueens and other locations throughout New York.

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