" Nearly 23% of the adult population in the world suffers some or other types of back pain in their lives..."

Low back pain is a common condition that can be caused by a variety of factors. Some of the most common reasons for low back pain include:

1. Muscle or ligament strain: Straining the muscles or ligaments in the lower back is a common cause of low back pain. This can be caused by lifting heavy objects, sudden movements, or even poor posture.

2. Disc herniation: The discs that cushion the vertebrae in the spine can bulge or rupture, causing pain and discomfort.

3. Spinal stenosis: This is a narrowing of the spinal canal, which can put pressure on the nerves that travel through the spine, causing pain and discomfort.

4. Arthritis: Osteoarthritis and other forms of arthritis can affect the joints in the lower back, causing pain and stiffness.

5. Osteoporosis: This is a condition in which the bones become brittle and weak, which can lead to fractures in the vertebrae, causing pain and discomfort.

6. Spondylolisthesis: This is a condition in which one vertebra slips forward over the vertebra below it, causing pain and discomfort.

7. Sciatica: This is a condition in which the sciatic nerve, which runs from the lower back down the leg, is compressed or irritated, causing pain, tingling, or numbness in the leg.

8. Fibromyalgia: This is a condition that causes widespread pain throughout the body, including the lower back. The reason for this condition is relatively unknown.

Other less common reasons for low back pain include infections, tumors, and autoimmune disorders. It is important to see a healthcare professional for a proper diagnosis and treatment plan if you are experiencing low back pain.