Post-Concussion Headache

Headache

Overview

Post-concussion headache (PCH) is a primary headache disorder that develops within 7 days following a concussion or mild traumatic brain injury and persists for weeks to months. It represents one of the most common sequelae of concussion, affecting 30-90% of patients, and significantly impacts functional recovery and quality of life. The headache often coexists with other post-concussion symptoms including dizziness, cognitive impairment, and mood changes, requiring a comprehensive biopsychosocial management approach.

Pathophysiology

Post-concussion headache results from multiple interconnected mechanisms including central sensitization of pain pathways, dysfunction of descending pain inhibitory systems, neuroinflammation, and altered neurotransmitter balance (serotonin, dopamine, norepinephrine). The initial traumatic force causes axonal injury and disruption of neuronal membrane integrity, triggering a cascade of metabolic and ionic disturbances. Cervical dysfunction commonly coexists due to rapid acceleration-deceleration forces during injury, creating a peripheral contribution through myofascial tension and cervical joint dysfunction. Vestibular system involvement, autonomic nervous system dysregulation, and post-traumatic stress responses perpetuate the headache cycle. Maladaptive neuroplasticity and pain chronification may develop with prolonged symptoms and fear-avoidance behaviors.

Typical Presentation

Site

Typically bilateral, frontal-temporal, or occipital regions; may be diffuse and non-localized; often cervicogenic component with upper neck and base of skull involvement

Quality

Pressurizing, throbbing, aching, or tension-like quality; may be sharp or stabbing; often described as heavy or vice-like; frequently changes in character throughout the day

Intensity

Mild to moderate intensity (4-7/10), though can be severe; typically fluctuates throughout the day; often worse with cognitive exertion, physical activity, or sustained postures

Aggravating

Cognitive activity and mental exertion; physical activity and exercise; sustained screen time or reading; neck movement and postural strain; bright light and noise sensitivity; stress and emotional triggers; poor sleep; rapid head movements; changes in weather or barometric pressure

Relieving

Rest and mental disengagement; quiet dark environments; neck stretching and gentle movement; stress reduction techniques; sleep; application of heat or ice; caffeine (sometimes); lying down with head supported

Associated

Cervical stiffness and neck pain; dizziness and vertigo; visual disturbances and photophobia; sound sensitivity (hyperacusis); fatigue and sleep disturbance; cognitive difficulties (brain fog, memory impairment, concentration issues); mood changes (irritability, anxiety, depression); balance impairment; vestibular dysfunction signs; nausea; temporal mandibular dysfunction

Orthopaedic Tests

Cervical Range of Motion Assessment

Procedure

Measure active cervical flexion, extension, lateral flexion, and rotation bilaterally using a cervical goniometer or inclinometer. Compare side-to-side symmetry and note reproduction of headache during movement.

Positive Finding

Restricted cervical range of motion (>10° asymmetry) or reproduction of headache symptoms during cervical movement, particularly with combined motions

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Suggests concurrent cervicogenic headache or cervical musculoskeletal dysfunction contributing to post-concussion headache; indicates need for cervical assessment and treatment

Cervical Flexion-Rotation Test

Procedure

Patient seated with trunk stabilised. Passively flex cervical spine maximally, then rotate head to each side. Measure rotation range with a goniometer at end-range rotation.

Positive Finding

Asymmetrical rotation limitation (>10° difference between sides) or >20° total rotation limitation when combined with flexion

Sensitivity / Specificity

72% / 91%

Hall et al., 2010, Manual Therapy

Interpretation

Indicates cervical facet joint restriction or upper cervical musculoskeletal dysfunction; highly specific for cervicogenic headache component in post-concussion presentations

Cervical Segmental Palpation

Procedure

Palpate cervical vertebrae C1–C7 and surrounding paraspinal musculature with patient seated, identifying areas of tenderness, muscle guarding, or segmental restriction through passive intervertebral motion testing.

Positive Finding

Localised segmental hypomobility, muscular tenderness, or protective muscle spasm at one or more cervical levels

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Identifies segmental dysfunction and myofascial trigger points; guides targeted manual therapy and supports diagnosis of cervicogenic component in post-concussion headache

Dizziness Handicap Inventory (DHI)

Procedure

Patient completes validated 25-item self-report questionnaire assessing physical, emotional, and functional impacts of dizziness and balance disturbance (scoring 0–100).

Positive Finding

Score >30 indicates moderate to severe dizziness-related handicap; correlates with vertigo and vestibular dysfunction in post-concussion syndrome

Sensitivity / Specificity

81% / 74%

Jacobson & Newman, 1990, American Journal of Otology

Interpretation

Quantifies dizziness impact; helps differentiate vestibular dysfunction from other post-concussion headache causes; useful for tracking intervention response

Oculomotor Screening (Smooth Pursuit & Saccade Testing)

Procedure

Patient tracks a slowly moving target (smooth pursuit) and performs rapid eye movements between two fixed targets (saccades). Observe for nystagmus, reduced velocity, accuracy deficits, or symptom reproduction.

Positive Finding

Broken or irregular smooth pursuit, hypometric or hypermetric saccades, nystagmus, or reproduction of headache or dizziness during eye tracking

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Suggests oculomotor dysfunction or vestibulocerebellar involvement contributing to post-concussion headache and dizziness; indicates need for vestibular rehabilitation

Neck Disability Index (NDI)

Procedure

Patient completes 10-item self-report questionnaire assessing functional limitation related to neck pain and disability (scoring 0–50).

Positive Finding

Score >8 indicates functional disability attributable to neck pathology; higher scores correlate with cervical involvement in post-concussion headache

Sensitivity / Specificity

Unknown / Unknown

Vernon & Mior, 1991, Journal of Manipulative and Physiological Therapeutics

Interpretation

Quantifies cervical-related functional impact; establishes baseline for tracking response to cervical manual therapy and rehabilitation in post-concussion management

⚠ Red Flags

  • •Signs of increasing intracranial pressure: progressively worsening headache, vomiting, altered consciousness, seizures
  • •Focal neurological deficits: weakness, sensory loss, speech difficulties, coordination problems
  • •Loss of consciousness or prolonged confusion following the initial injury
  • •Cerebrospinal fluid leakage (clear fluid from nose or ears)
  • •Persistent or progressive neurological symptoms beyond expected post-concussion timeline
  • •Signs of concurrent spinal cord injury: bilateral symptoms, bladder/bowel dysfunction, respiratory compromise
  • •High-impact mechanism with severe initial symptoms despite mild clinical presentation
  • •Immunocompromised status with fever and headache suggesting meningitis
  • •Anticoagulation use with any head injury mechanism
  • •Repeated concussions within short timeframes suggesting cumulative brain injury

⚡ Yellow Flags

  • •High pain catastrophizing and fear-avoidance behaviors limiting participation in recovery
  • •Significant mood disturbance including depression or anxiety predating or worsening post-injury
  • •Excessive focus on symptoms with health anxiety or illness preoccupation
  • •Lack of social support or poor family understanding of post-concussion condition
  • •Secondary gain factors or ongoing litigation related to the injury
  • •Pre-existing chronic pain or psychiatric conditions complicating recovery trajectory
  • •Maladaptive coping strategies including substance use or social withdrawal
  • •High baseline stress levels or recent significant life stressors
  • •Poor sleep hygiene and sleep disturbance perpetuating symptom cycle
  • •Unrealistic expectations regarding recovery timeline and functional restoration

Osteopathic Techniques

Region

Cervical spine and upper thoracic

Technique

Soft Tissue

Rationale

Addresses myofascial tension and muscle guarding in upper trapezius, sternocleidomastoid, suboccipitals, and levator scapulae that perpetuate cervicogenic components of post-concussion headache. Mobilization of restricted fascia improves proprioceptive feedback and reduces aberrant pain signaling from cervical mechanoreceptors.

Region

Cervical spine (C1-C4 particularly)

Technique

Articulation

Rationale

Restores normal segmental mobility and reduces joint restriction contributing to cervical dysfunction post-injury. Gentle articulation promotes afferent input to central pain-inhibitory pathways and modulates pain perception without aggressive manipulation inappropriate in post-concussion management.

Region

Suboccipital region and occipitoatlantal joint

Technique

Cranial

Rationale

Addresses restrictions at craniovertebral junction affecting cerebrospinal fluid flow, dural tension, and autonomic nervous system regulation. Gentle cranial techniques influence trigeminal nerve function and normalize intracranial pressure dynamics contributing to headache pathophysiology.

Region

Thoracic inlet and upper thoracic spine

Technique

MET

Rationale

Muscle energy techniques address restrictions in thoracic spine and outlet, improving postural mechanics and reducing compensatory cervical strain. Enhanced thoracic mobility decreases reliance on cervical stabilizers and reduces headache perpetuating factors.

Region

Cranial base and cervical fascia

Technique

Soft Tissue

Rationale

Specific release of dural attachments at foramen magnum and cervical fascia normalizes mechanical restrictions affecting meningeal mobility and trigeminal nerve irritation, reducing central sensitization contributing to pain perpetuation.

Region

Lymphatic system (cervical and occipital nodes)

Technique

Lymphatic

Rationale

Enhances lymphatic drainage of inflammatory mediators and reduces neuroinflammation in post-concussion headache. Improved lymphatic flow supports autonomic nervous system rebalancing critical to headache resolution.

Add-On Approaches

Chinese Medicine

Traditional Chinese Medicine approaches focus on restoring Qi flow disrupted by traumatic injury, particularly along Gallbladder, Triple Burner, and Bladder meridians affected by cervical dysfunction. Acupuncture at points such as Fengchi (GB20), Yintang, and Baihui combined with herbal protocols addressing blood stasis and Qi stagnation may support symptom resolution. Cupping therapy applied to upper trapezius and occipital region may relieve myofascial restriction.

Chiropractic

Gentle cervical manipulation or mobilization to restore normal segmental mobility, particularly addressing any restrictions at C1-C2 and C3-C4 segments. Chiropractic may include postural analysis and ergonomic assessment to identify perpetuating factors. Some practitioners employ specific adjustment techniques for cervicogenic headache components, though evidence for manipulation in post-concussion headache is limited and caution is warranted.

Physiotherapy

Structured physiotherapy protocols emphasizing cervical stabilization exercises, proprioceptive training, and progressive vestibulo-ocular reflex exercises when dizziness coexists. Graduated aerobic activity following return-to-activity protocols supports symptom recovery. Postural re-education and workstation ergonomics address perpetuating factors. Cognitive-motor dual-task training addresses cognitive-physical impairment interactions.

Remedial Massage

Remedial massage targeting upper trapezius, sternocleidomastoid, suboccipitals, and levator scapulae addresses myofascial restriction and trigger points contributing to headache. Deep tissue techniques combined with stretching release chronic muscle tension. Trigger point release in suboccipital region particularly beneficial for base-of-skull pain commonly reported in PCH. Massage improves circulation and reduces sympathetic nervous system overactivity.

Rehabilitation Exercises

Gentle Cervical Rotation in Neutral

Range of MotionBeginner

Cervical Flexion-Extension Pendulum (Supported)

Range of MotionBeginner

Upper Trapezius Stretch (Modified)

StretchingBeginner

Suboccipital Myofascial Release (Self-Massage)

StretchingBeginner

Cervical Isometric Stabilization (Multi-Planar)

StrengtheningIntermediate

Deep Cervical Flexor Activation (Supine Chin Tuck)

StrengtheningIntermediate

Postural Awareness and Correction (Desk Posture)

PosturalBeginner

Gaze Stabilization Exercises (Vestibulo-Ocular Reflex)

BalanceIntermediate

Graduated Aerobic Activity (Walking Program)

CardiovascularBeginner

Scapular Stabilization and Retraction Exercises

PosturalIntermediate

Thoracic Spine Mobilization (Supported Extension)

Range of MotionBeginner

Proprioceptive Training (Dynamic Stability Progression)

BalanceAdvanced

Referral Criteria

  • •Headache showing progressive worsening despite 4-6 weeks of appropriate conservative management
  • •Any red flag symptoms requiring urgent neurological evaluation and imaging
  • •Persistent cognitive impairment, memory problems, or concentration difficulties beyond expected timeline
  • •Significant mood disturbance including depression or anxiety requiring psychological intervention
  • •Vestibular dysfunction with persistent dizziness or vertigo requiring specialized vestibular rehabilitation
  • •Suspected cervical spine pathology requiring advanced imaging (MRI) or orthopedic evaluation
  • •Trigeminal neuralgia or other primary headache disorder suspected
  • •Chronic pain development with significant functional disability and psychosocial factors requiring pain management specialist
  • •Sleep disorders significantly impacting recovery requiring sleep medicine consultation
  • •Substance use or dependency issues requiring addiction medicine support
  • •Unresponsiveness to multimodal conservative approach after 8-12 weeks suggesting need for neurologist re-evaluation
  • •Suspected post-traumatic stress disorder or complex emotional sequelae requiring mental health intervention