What Causes Sacroiliac Joint Pain

Injury or Trauma

A fall, car accident, or sudden impact can injure the sacroiliac (SI) joint, leading to pain and discomfort.

Pregnancy

Hormonal changes during pregnancy loosen ligaments, increasing stress on the SI joints as the body adjusts for childbirth.

Arthritis

Conditions like osteoarthritis or ankylosing spondylitis can cause inflammation and degeneration in the SI joint.

Repetitive Stress

Activities like running, lifting, or standing for long periods can place repetitive strain on the SI joint, resulting in pain over time.

Leg Length Discrepancy

Uneven leg length shifts the body’s alignment, overloading one SI joint more than the other.

Poor Posture

Slouching or prolonged sitting in incorrect positions can increase pressure on the lower back and SI joints.

Degenerative Change

Age-related wear and tear can weaken the cartilage in the SI joint, leading to stiffness and discomfort.

Obesity

Excess weight can place additional stress on the lower back and SI joints, contributing to joint pain.

Inflammatory Condition

Autoimmune diseases like psoriasis or inflammatory bowel disease may trigger inflammation in the SI joint.

Infections

Although rare, bacterial infections can affect the SI joint, causing inflammation and severe pain.

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