Bursitis

A bursa is lined by synovial membrane and filled with a small amount of lubricating fluid.

Repetitive friction, pressure, or trauma causes increased vascular permeability and inflammatory cell infiltration, leading to synovial thickening and fluid accumulation.

Chronic inflammation may result in fibrosis and calcification, producing persistent swelling or tenderness.

Usually presents with pain, tenderness and swelling over the affected region which worsens with movement, pressure or improper footwear. Sometimes, morning stiffness or pain happens when you start walking.

Repetitive loading and overuse (e.g., running, jumping).

Poorly fitting shoes or rigid heel counters.

Bony deformities (Haglund deformity, bunions).

Systemic inflammatory diseases (e.g., rheumatoid arthritis, gout).