Poor posture, knee joint degeneration (arthritis, osteoarthritis), auto-immune disorders (gout, psoriasis, thyroid disease), previous surgical intervention, bone spurs / calcium deposits, prolonged kneeling and leg-length discrepancy (one leg is shorter than the other) are all risk factors for knee bursitis (reference: 1). Bursitis is most common in males (80%) between the age of 40 and 60 however bursitis that occurs due to trauma is most common before the age of 35. For knee bursitis this might mean that you've hurt some of the soft tissue in the knee from a trauma (like a fall) or from repetitive damage over time as can be imagined from certain professions such as carpet installation or roofing.Д«ursae in the knee are most often injured from overuse or as a result from excessive strain (even a traumatic accident or fall). 'Aseptic bursitis' will happen when your bursa isn't infected but your bursitis has been caused by inflammation from another soft tissue injury. Consult your physician if you think you have septic bursitis as only they can confirm the condition and prescribe proper treatment options.

Septic bursitis is not something to take lightly, as an infected bursa can spread infection throughout the body and become life-threatening. If your bursa becomes infected, it's known as 'septic bursitis'. There are 2 different kinds of bursitis - 'septic' and 'aseptic' bursitis. The most commonly inflamed Bursae in the knee are the prepatellar bursa followed by the infrapatellar bursa, pes anserinus bursa and suprapatellar bursa. Bursae in the knee include the suprapatellar bursa, prepatellar bursa, infrapatellar bursa (deep & subcutaneous), anserinus bursa, pretibial bursa, fibular bursa, fibulopopliteal bursa, subpopliteal bursa, gastrocnemius bursa (lateral & medial) and the bursa semimembranosa. We have approximately 160 bursae in our bodies with most of them located in our joints - usually sandwiched between tendons and bone. In any case, once the bursa has swollen then the bursa can no longer serve its purpose as a friction reducer you will most likely find that the swollen bursa sac(s) can cause a lot of pain and interrupt your lifestyle quite significantly. If the bursa sac contains pus, this means it is infected (also known as septic) and you are advised to seek medical attention immediately as this can quickly become life threatening. If the bursa fills with blood, it is usually due to trauma - a specific injury such as a fall or perhaps even a car accident. If you experience bursitis, then the bursa sac has become swollen with synovial fluid, blood and or pus.

Pes anserine bursitis treatment