How Long Do Concussion Symptoms Last?

Most concussion symptoms resolve within 2 to 6 weeks, but recovery time varies depending on the individual, the severity of the injury, and prior history of head trauma. In some cases, symptoms may last for months or even become chronic—a condition known as post-concussion syndrome (PCS).

Understanding what to expect after a concussion, how long symptoms might last, and when to seek help can make a big difference in recovery and long-term health outcomes.

Typical Concussion Recovery Timeline

For most people, concussion symptoms begin to improve within a few days and resolve entirely within 2 to 4 weeks. However, about 10-20% of people may experience persistent symptoms beyond that window.

General Timeline:

• 0–2 Days: Rest and reduced stimulation are essential.
• 3–7 Days: Gradual return to light mental and physical activity.
• 1–4 Weeks: Symptoms typically fade during this period.
• 4+ Weeks: Recovery may take longer for children, teens, or individuals with complicating factors.

Important: If symptoms persist beyond 3 months, a person may be diagnosed with post-concussion syndrome.

What Is Post-Concussion Syndrome (PCS)?

Post-concussion syndrome (PCS) refers to symptoms that linger beyond the normal recovery window—usually more than 4 to 6 weeks in adults, and longer than 1 month in children.

PCS symptoms may include:

• Persistent headaches
• Memory issues
• Dizziness
• Sleep disturbances
• Difficulty concentrating
• Mood swings or depression

How Common Is PCS?

Studies show up to 15% of concussion patients develop PCS. Those with a history of concussions, mental health conditions, or previous neurological issues may be at higher risk.

What Factors Affect Recovery Time?

Every brain injury is different, and several key factors can influence how long concussion symptoms last:

1. Severity of the Injury

More severe concussions typically take longer to heal.

2. Age

• Children and teenagers often require more time to recover.
• Older adults may also experience prolonged healing due to brain changes and pre-existing conditions.

3. History of Concussions

Repeat head injuries can lengthen recovery or make symptoms worse.

4. Overall Health

Pre-existing conditions like migraines, ADHD, depression, anxiety, or sleep disorders can affect healing.

5. How Soon You Rest

Early physical and cognitive rest in the first 24–48 hours is proven to speed up recovery.

Common Concussion Symptoms to Monitor

Symptoms fall into four main categories:

Physical

• Headaches
• Nausea or vomiting
• Dizziness or balance problems
• Sensitivity to light or noise

Cognitive

• Trouble concentrating
• Memory issues
• Slowed thinking or “brain fog”

Emotional

• Irritability
• Sadness or depression
• Nervousness or anxiety

Sleep-related

• Sleeping more or less than usual
• Difficulty falling or staying asleep

These symptoms may come and go, and new symptoms may appear as you resume activity.

Guidelines for a Safe Recovery

The cornerstone of concussion recovery is rest and gradual reintroduction to activity—but the approach should be individualized.

Step-by-Step Recovery Plan:

1. Initial Rest (24–48 Hours):
   
   • Avoid screens, reading, work, or physical activity.
   • Prioritize sleep and quiet surroundings.
     
2. Gradual Activity:
   
   • Return to light mental tasks (reading, work) if symptoms allow.
   • Progress to walking or light physical activity.
     
3. Medical Clearance:
   
   • Always get cleared by a healthcare provider before returning to sports, heavy exercise, or cognitively demanding tasks.
     
4. Monitor for Setbacks:
   
   • If symptoms worsen, scale back and give your brain more time to heal.

When to Seek Medical Attention

Concussions are serious injuries and should always be evaluated by a healthcare provider. Seek immediate medical help if you experience:

• Vomiting more than once
• Severe or worsening headaches
• Confusion or slurred speech
• Seizures
• Uneven pupil size
• Trouble waking up
• Loss of consciousness (even briefly)

What to Do If Symptoms Persist

If your symptoms last longer than expected:

• Consult a neurologist or concussion specialist
• Ask about vestibular therapy (for balance/dizziness)
• Consider cognitive or psychological therapy if mental fog, mood swings, or depression persist
• Track your symptoms in a journal to identify triggers

Legal Tip: Was Your Concussion Caused by an Accident?

If your concussion resulted from a car accident, fall, sports injury, or another act of negligence, you may be entitled to compensation for:

• Medical expenses
• Lost wages
• Pain and suffering
• Future care related to PCS

Let Matthew R. Boren Fight for Your Recovery

At Matthew R. Boren, Attorney at Law, we’ve helped countless concussion and brain injury victims across Florida get the support and compensation they need. Whether your injury happened in a car crash, a slip and fall, or due to someone else’s recklessness—you shouldn’t have to recover alone or on your own dime. Contact us today for a free consultation and find out how we can help you protect your rights, access the right care, and build a stronger future.

Concussion FAQ

What is a concussion?

A concussion is a traumatic brain injury caused by a forceful blow or jolt to the head that disrupts normal brain function.

How long do concussion symptoms last?

Symptoms from mild concussions typically resolve within 7–10 days, while moderate and severe cases may last weeks or months.

What is post-concussion syndrome (PCS)?

PCS occurs when concussion symptoms persist for weeks or months after the injury. It may require specialized medical care.

How can I speed up my recovery?

Following medical advice, resting, and avoiding activities that strain the brain are critical steps in recovery.