There are several types of inflammation that can cause knee pain, including sprains, bursitis, and injuries to the meniscus. A diagnosis of<unk>  can be made based on a physical examination and the presence of risk factors in the person's medical history; swelling and tenderness at the front of the knee, combined with a profession that requires frequent kneeling, suggest<unk> . Swelling of multiple joints along with restricted range of motion may indicate arthritis instead. A physical examination and medical history are generally not enough to distinguish between infectious and non-infectious bursitis; aspiration of the bursal fluid is often required for this, along with a cell culture and Gram stain of the aspirated fluid. Septic<unk>  may be diagnosed if the fluid is found to have a neutrophil count above 1500 per microliter, a threshold significantly lower than that of septic arthritis (50,000 cells per microliter). A tuberculosis infection can be confirmed using a radiograph of the knee and urinalysis.
Prepatellar bursitis
Infrapatellar bursitis
Ischial bursitis
Pes anserine bursitis
Retrocalcaneal bursitis
Patellar tendinitis
Olecranon bursitis
Plantar calcaneal bursitis