Connection Between Back Pain and Headaches
Yes, there is a well-established connection between back pain and headaches, with chronic forms of both conditions showing particularly strong associations that likely reflect shared pathophysiological mechanisms involving central pain processing and neuromotor dysregulation.
Epidemiological Evidence of Association
The relationship between back pain and headaches is supported by robust population-based data:
Chronic migraine (CM) and chronic tension-type headache (CTTH) patients have dramatically elevated odds of frequent low back pain compared to individuals without headaches, with odds ratios ranging from 13.7 to 18.3 times higher 1.
Episodic headache sufferers also show increased back pain, with 2.1 to 2.7 times higher odds of frequent low back pain compared to those without headaches 1.
The prevalence of back pain increases with headache chronicity: 82.5% in chronic headache patients, 80.1% in episodic headache patients, versus 65.7% in those without headaches 2.
Migraine can develop as a sequela to chronic low back pain, with female chronic back pain patients showing significantly higher migraine prevalence than the general female population 3.
Shared Pathophysiological Mechanisms
The connection extends beyond mere statistical association to shared underlying mechanisms:
Central Sensitization
Patients with both back pain and chronic headache demonstrate lower pain pressure thresholds at both cephalic (temporalis) and extracephalic (finger) sites, suggesting central sensitization as a common substrate 2.
Pericranial tenderness scores are significantly elevated in headache patients with back pain, highest in chronic headache (26.3 ± 12.1), followed by episodic headache (18.5 ± 10.0), and lowest in no headache controls (10.8 ± 8.5) 2.
Neuromotor Dysregulation
Both tension-type headache and non-specific low back pain share specific clinical features: they are muscular pain conditions along the spine, predominantly affect women, may occur spontaneously or after trivial trauma, and have high chronicity risk 4.
EMG studies reveal diffuse hyperactivity and abnormal activation patterns in affected muscles, with discoordinated motor control in both cervical (headache) and lumbar (back pain) regions 4.
Enhanced muscular conditioning responses occur in both conditions: patients with chronic back pain and tension-type headache show significantly more unconditioned and conditioned muscular responses to pain stimuli compared to healthy controls 5.
Clinical Framework: "Spinal Dyssynergia"
The shared features suggest a unified pathophysiological concept:
The term "spinal dyssynergia" has been proposed to describe this specific pattern of pathology affecting neuromotor control of cervical and lumbar muscle groups 4.
This framework places the primary pathology within the central nervous system rather than in the spine or spinal musculature itself 4.
The neurobiology of chronic headache involves not only the trigeminal pain pathway but represents abnormal general pain processing that can manifest throughout the spine 1.
Procedural Context: Post-Lumbar Puncture
In the specific context of lumbar puncture procedures, both symptoms commonly co-occur:
Headache and back pain are the most commonly reported post-LP adverse events 6.
Back pain occurs in approximately 16-17% of patients following lumbar puncture 6.
Post-dural puncture headache occurs in 0.9-9.0% of patients, typically within 5 days of the procedure 6.
Clinical Implications
Assessment Priorities
When evaluating patients with both back pain and headaches:
Screen for features of central sensitization including widespread pain sensitivity, allodynia, and pain disproportionate to tissue findings 2.
Assess for chronicity patterns as the association strengthens dramatically when either or both conditions become chronic 1.
Evaluate for shared risk factors including female sex, younger age, and psychological distress 4, 3.
Common Pitfalls to Avoid
Do not assume these are independent conditions requiring separate treatment approaches when they co-occur chronically 1.
Avoid focusing solely on peripheral structural pathology when central pain processing abnormalities may be the primary driver 4.
Do not overlook medication overuse as a potential mechanism linking chronic back pain to subsequent migraine development 3.