What to Expect During Concussion Recovery: A Physical Therapist’s Guide

When to Seek Emergency Care Right Away

Before anything else: most concussions heal well, but a small number involve bleeding or swelling in the brain that requires immediate emergency treatment. Seek immediate medical attention at the nearest emergency room if someone with a head injury has any of the following:

A headache that keeps getting worse and won’t go away
Repeated vomiting or increasing nausea
Slurred speech, weakness, numbness, or decreased coordination
Looks very drowsy, can’t be woken up, or loses consciousness, even briefly
One pupil (the black part of the eye) is larger than the other
Convulsions or seizures
Increasing confusion, restlessness, or agitation
Can’t recognize people or familiar places
Unusual or increasingly erratic behavior

For children, also seek emergency care if they won’t stop crying and can’t be consoled, or refuse to eat or nurse. These are the CDC’s established danger signs, and they mean an ER visit, not a wait-and-see approach.

If none of these are present, a concussion is still a real injury that needs proper evaluation and management, just not an emergency one.

What a Concussion Evaluation Actually Looks Like

A common question patients ask before their first visit is simply: what happens in this appointment?

A physical therapist trained in concussion management starts with a detailed evaluation covering several systems, not just “how’s your head feeling.” That typically includes:

Neck function, since neck injuries commonly occur alongside concussions and can cause overlapping symptoms like headaches and dizziness
Balance and gait, to check for lingering coordination issues
Vision and eye tracking, since the visual system is heavily connected to concussion symptoms
Vestibular function, the inner ear system responsible for balance and spatial orientation
Memory, reaction time, and cognitive processing
Symptom reporting, since two people with the same injury can have very different symptom patterns

Because symptoms vary so much between individuals, treatment is built around whichever systems are actually affected, not a one-size-fits-all checklist. Findings are typically shared with the rest of the care team, which may include the treating physician, athletic trainer, and school, so everyone managing the recovery is working from the same information.

How Concussion Recovery Actually Progresses

Concussion management has changed significantly in recent years. Older advice leaned heavily on strict rest, sometimes for days or weeks, until all symptoms disappeared completely. Current guidance, reflected in the 2023 international consensus statement on concussion in sport, takes a different approach:

The first 24 to 48 hours: brief relative rest. A short period of reduced physical and cognitive activity is still recommended immediately after injury. This isn’t the same as complete isolation in a dark room for days, which research no longer supports.

Days 2 through 10: gradual reintroduction of light activity. Most current guidelines now encourage returning to light daily activities, and even light aerobic exercise, within this window rather than waiting until symptoms fully resolve. Activity is dosed carefully and stays below the level that triggers symptoms.

Ongoing: symptom-guided progression. From there, therapy intensity is adjusted based on how the person responds. If symptoms increase, intensity is scaled back. If symptoms stay stable or improve, activity is gradually increased. This is often described as staying just below the “symptom threshold,” pushing enough to promote recovery without provoking a flare-up.

Return-to-sport: a staged, supervised process. Athletes typically move through a structured progression (often six steps) from light activity to full-contact practice, with each step requiring at least 24 hours and medical clearance before advancing. This process should always be supervised by a healthcare provider, not self-managed.

How Long Does Recovery Actually Take?

This is the question everyone wants a precise answer to, and honestly, precise answers here tend to be misleading. Here’s what the research actually shows:

Most people recover within two to four weeks. One large clinical study found that 45% of patients had recovered within 14 days, 77% by four weeks, and 96% by eight weeks. That leaves a meaningful group of people, particularly children, teens, and those who delay seeking care, who take longer.

Age matters, but not in a rigid, predictable way. Multiple studies have found that children and adolescents tend to take longer to recover than adults on average, sometimes by several weeks, but individual variation is significant, and some research has found no significant difference between age groups when other factors are equal. Getting evaluated early, ideally within the first week, has also been associated with faster recovery in several studies.

Sex, injury history, and whether the injury happened during sports also influence recovery time. Females have shown notably longer average recovery times than males in some studies. The honest summary: recovery timelines vary enough between individuals that anyone giving you an exact number of days without evaluating the specific injury is guessing.

Warning Signs After You’ve “Recovered”

Concussion recovery isn’t always a straight line. After being cleared and returning to normal activity, it’s worth staying alert for:

Headaches or dizziness that return, especially with exertion
New or worsening difficulty concentrating
Sleep disruption that wasn’t present before
Mood changes, irritability, or increased anxiety
Sensitivity to light or noise reappearing

If any of these show up after clearance, it’s worth a follow-up with the care team rather than assuming it will pass on its own. A small percentage of people experience persistent symptoms beyond the typical recovery window, and this deserves further evaluation, not just more waiting.

Why Getting Care Early Matters

One of the more consistent findings in recent concussion research is that starting clinical care sooner is associated with faster, more complete recovery. Waiting to see if symptoms resolve on their own, particularly beyond the first week or two, has been linked to longer recovery times in several studies.

This is part of why current guidance has moved away from prolonged strict rest. Extended inactivity doesn’t just fail to speed up healing, it can also lead to deconditioning, mood changes, and increased anxiety about symptoms, all of which can complicate recovery further.

Frequently Asked Questions

How soon after a concussion should I see a physical therapist?
Current guidance supports seeking evaluation within the first week when possible. Earlier evaluation has been associated with faster recovery in multiple studies, though you should see a physician first for initial diagnosis and to rule out more serious injury.

Is complete rest still recommended after a concussion?
No, not for an extended period. Current guidelines recommend a brief period of relative rest, typically 24 to 48 hours, followed by a gradual, carefully dosed return to light activity. Prolonged strict rest is no longer considered best practice for most concussions.

Can you get a concussion without losing consciousness?
Yes. Loss of consciousness occurs in fewer than 10% of concussions. Most people remain conscious throughout, which is part of why concussions are sometimes missed or downplayed.

What’s the difference between a concussion symptom and a danger sign?
Symptoms like headache, dizziness, or fatigue are part of the normal, expected recovery process. Danger signs, such as a worsening headache that won’t go away, repeated vomiting, slurred speech, or loss of consciousness, indicate a possible medical emergency and require immediate care.

Can concussion symptoms come back after you’ve recovered?
Yes, particularly with exertion, stress, or lack of sleep. If symptoms return after being cleared, it’s worth a follow-up evaluation rather than assuming it will resolve on its own.

Sources

Centers for Disease Control and Prevention. HEADS UP: Signs and Symptoms of Concussion. cdc.gov/heads-up
Patricios JS, Schneider KJ, Dvorak J, et al. Consensus statement on concussion in sport: the 6th International Conference on Concussion in Sport, Amsterdam, October 2022. British Journal of Sports Medicine 2023;57:695-711.
Kara S, et al. Less Than Half of Patients Recover Within 2 Weeks of Injury After a Sports-Related Mild Traumatic Brain Injury. Clinical Journal of Sport Medicine, 2020.
Kontos AP, et al. Association of Time Since Injury to the First Clinic Visit With Recovery Following Concussion. JAMA Neurology, 2020.

This article is for informational purposes and doesn’t replace individualized medical evaluation. If you or someone you know has experienced a head injury, see a physician or emergency department for proper diagnosis before beginning any treatment plan.