Age-Related Transitions in Low Back Pain Pathology: A Life-Course Narrative Review

Low back pain (LBP) represents the primary global cause of years lived with disability, significantly compromising health-related quality of life and imposing a substantial economic burden on healthcare systems. This narrative review conceptualizes LBP as a dynamic life-course process rather than a static diagnostic entity. A comprehensive search of PubMed, Scopus, and Web of Science was conducted using MeSH and free-text terms (e.g., “Low Back Pain,” “Aging,” spine diseases) for clinical trials, cohorts, and reviews published from inception through to January 2026. In adolescence, the focus is primarily on mechanical stress-induced spondylolysis among young athletes. As individuals transition into young adulthood, the pathological emphasis shifts toward intervertebral disc health, marked by symptomatic herniation and the emergence of Modic changes, alongside the increasing relevance of psychosocial “Yellow Flags” in predicting chronicity. By middle and older adulthood (60+), cumulative degenerative changes involve both the intervertebral discs and facet joints, frequently manifesting as lumbar spinal stenosis and sagittal malalignment. During this phase, global spinal balance replaces localized pathology as the primary determinant of disability. For late-old adults (80+), the clinical landscape is dominated by the synergistic impacts of sarcopenia and osteoporosis, shifting the assessment focus from flexibility to functional standing and walking capacity. The high prevalence of fragility fractures and the potential for serious “red flag” conditions necessitate a high index of clinical suspicion in this demographic. LBP is not a static diagnostic entity but a dynamic, evolving process that shifts across the human lifespan. Low back pain is a major global health issue that changes significantly as people grow older. This review explains how the primary causes of back pain evolve throughout a person’s life, shifting from simple injury to complex changes in body balance. In teenagers, pain often results from small stress fractures caused by sports. In young adults, the focus shifts to the spinal discs, where bulging or inflammation can cause sharp nerve pain. By the time people reach their 60s, narrowing of the spinal canal and a forward-leaning posture become the main reasons for severe pain and difficulty walking. For those over 80, weak muscles (sarcopenia) and brittle bones (osteoporosis) lead to a high risk of fractures and difficulty simply standing upright. Crucially, this review highlights the “biological engine” of aging within our cells, showing how a decline in protective proteins including SIRT6 triggers spinal decay. To combat this, modern medicine provides a vital bridge between basic conservative care and major surgery. We explore advanced, image-guided treatments-ranging from targeted injections and advanced nerve-numbing techniques to exciting future biological therapies such as stem cells and tissue-repair cocktails. By matching specific treatments to the patient’s exact life stage and anatomy, doctors can move away from a “one-size-fits-all” approach and help people stay active and independent throughout their lives.