What Causes Lower Back Pain? : Understanding Better Diagnosis & Treatment
Introduction
Lower back pain is one of the most common health issues, affecting people of all ages. It can range from a mild ache to severe discomfort, limiting movement and daily activities. Understanding the causes of lower back pain is essential to finding effective treatment and prevention strategies.

Common Causes of Lower Back Pain
1. Muscle Strain and Sprains
One of the most frequent causes of lower back pain is muscle strain or ligament sprain. This can happen due to:
Lifting heavy objects incorrectly
Sudden movements or twisting
Poor posture while sitting or standing
Overuse from repetitive movements
2. Herniated or Bulging Discs
The spine consists of small bones (vertebrae) with soft discs in between. These discs act as cushions, absorbing shock. When a disc bulges or ruptures, it can press on nearby nerves, causing pain, numbness, or tingling sensations.
3. Sciatica
Sciatica occurs when the sciatic nerve, which runs from the lower back down to the legs, becomes compressed or irritated. This condition often results from a herniated disc and causes pain that radiates down one leg.
4. Poor Posture
Sitting or standing in the wrong position for long periods can strain the lower back. Common postural mistakes include:
Slouching while sitting
Hunching over a phone or computer
Sleeping on an unsupportive mattress
5. Degenerative Disc Disease
As we age, the discs in our spine lose moisture and shrink. This natural aging process can lead to pain, stiffness, and reduced flexibility in the lower back.
6. Spinal Stenosis
This condition occurs when the spaces in the spine narrow, putting pressure on the spinal cord and nerves. It is more common in older adults and causes pain, weakness, or numbness in the lower back and legs.
7. Spondylolisthesis
This happens when one vertebra slips forward over another, leading to instability and lower back pain. It can be due to aging, injury, or congenital conditions.
8. Osteoarthritis
Wear and tear on the spine can cause osteoarthritis, where the cartilage in the joints breaks down. This leads to inflammation, stiffness, and pain in the lower back.
9. Sedentary Lifestyle
Lack of movement and prolonged sitting weaken the back muscles, making them more prone to pain and injury. Regular physical activity helps strengthen the core and support the lower back.
10. Obesity
Excess weight puts additional strain on the spine and back muscles, leading to discomfort and an increased risk of spinal issues.
11. Pregnancy
The added weight and shift in the center of gravity during pregnancy can cause lower back pain due to increased stress on the spine and pelvic region.
12. Stress and Mental Health Issues
Emotional stress, anxiety, and depression can contribute to muscle tension and chronic pain in the lower back. Mental well-being plays a significant role in physical health.
When to Seek Medical Help
Consult a doctor if:
- Pain persists for more than a few weeks
- There is numbness, tingling, or weakness in the legs
- The pain worsens at night or while resting
- There is unexplained weight loss or fever with back pain
- You experience difficulty controlling bowel or bladder functions
Lower back pain can result from various causes, including muscle strain, poor posture, spinal conditions, and lifestyle factors. Identifying the underlying cause is essential for effective treatment and prevention. Regular exercise, proper posture, and maintaining a healthy weight can help reduce the risk of back pain and improve overall spinal health.
