Based on the nature of the inflammation,<unk>  may classified into two subtypes: septic and aseptic.
Common anatomic location include the shoulder, elbow, hip, knee, and ankle. The most common<unk>  subtypes include subacromial, olecranon, trochanteric, prepatellar, and retrocalcaneal.
Moreover, based on the location of the affected bursa in relation to the skin,<unk>  may be further classified into two additional subtypes: superficial and deep. Superficial bursa are more prone to get infected with bacteria and develop septic<unk> . Common locations of septic<unk>  include the knee (prepatellar<unk>  and elbow (olecranon<unk> .
Bursitis classification
Septic arthritis classification
Osteoarthritis classification
Osteomyelitis classification
Ankylosing spondylitis classification
Psoriatic arthritis classification
Bursitis epidemiology and demographics
Runyon classification