Low back pain (LBP) is one of the most common health problems worldwide and a leading cause of disability. Nearly everyone experiences it at some point in life. It can range from a mild, dull ache to severe, disabling pain that interferes with daily activities. Understanding its causes and treatment options is essential for effective management.
Causes of Low Back Pain
Low back pain can be broadly divided into mechanical, non-mechanical, and referred causes.
- Mechanical Causes (Most Common)
These involve the spine, muscles, ligaments, or discs.
Muscle strain and ligament sprain: The most frequent cause, often due to improper lifting, sudden movements, or overuse.
Intervertebral disc degeneration: With age, discs lose water content, reducing flexibility and shock-absorbing ability.
Disc herniation (slipped disc): The inner part of the disc protrudes and compresses nearby nerves, causing pain that may radiate to the legs (sciatica).
Facet joint arthritis: Degeneration of joints between vertebrae leads to localized pain and stiffness.
Spondylosis: Age-related wear and tear of the spine.
Spondylolisthesis: One vertebra slips over another, causing instability and pain. - Non-Mechanical Causes
Infections (e.g., spinal tuberculosis)
Tumors (primary or metastatic)
Inflammatory diseases like ankylosing spondylitis
Osteoporosis leading to compression fractures - Referred Pain
Pain originating from other organs:
Kidney stones or infections
Gynecological conditions
Abdominal aortic aneurysm
Risk Factors
Sedentary lifestyle
Obesity
Poor posture
Occupational hazards (long sitting or heavy lifting)
Smoking
Psychological stress
Symptoms
Localized pain in the lower back
Stiffness and reduced mobility
Radiating pain to buttocks or legs (sciatica)
Numbness or tingling
Muscle weakness (in severe nerve compression cases)
Red flag symptoms (require urgent evaluation):
Loss of bladder or bowel control
Severe weakness in legs
Unexplained weight loss
Fever with back pain
History of cancer
Diagnosis
Diagnosis is mainly clinical but may require investigations:
X-ray: For bone abnormalities
MRI: Best for disc, nerve, and soft tissue evaluation
CT scan: Detailed bone imaging
Blood tests: If infection or inflammatory disease is suspected
Treatment of Low Back Pain
Treatment depends on the cause, severity, and duration. - Conservative (Non-Surgical) Treatment
a) Rest and Activity Modification
Short-term rest (1–2 days) may help in acute pain
Avoid prolonged bed rest, as it can worsen stiffness
b) Medications
NSAIDs (e.g., Ibuprofen, Diclofenac): Reduce pain and inflammation
Muscle relaxants: For muscle spasms
Neuropathic agents: For nerve-related pain
Short-term opioids (only in severe cases, under supervision)
c) Physiotherapy
A cornerstone of treatment:
Stretching and strengthening exercises
Core muscle strengthening
Posture correction
Heat therapy or ultrasound therapy
One of the most effective exercises is: