If you have a bursa on the knee is walking still ok? Or limit?

Walking is usually fine with a knee bursa. The evidence on how much to limit is thin.

The retrieved studies are almost all about pes anserine bursitis, the bursa on the inner side of the knee, and about bursitis elsewhere in the body. None of them directly tested a walking program against rest. So the honest answer rests on general clinical knowledge, flagged as outside these records, plus what the studies do show.

What the records do show is that these bursa problems are common and often secondary. In a large cohort, anserine bursitis did not independently predict new knee pain or new arthritis after adjustment [1]. In a workforce survey, knee bursitis was rare overall but rose sharply with kneeling: about 0.1 in 100 with no kneeling, up to 3.6 in 100 with more than four hours a day [2]. That points to mechanical load, not rest, as the driver. Complete rest is not the fix; reducing the load that irritates the bursa is.

So walk, but cut the kneeling, squatting, and long downhill or stair-heavy stretches that press on the bursa [2]. If it is hot, red, and swollen, that is a different problem, septic bursitis, which needs antibiotics, not a walking decision [3].

My call: keep walking at a comfortable level and remove the kneeling load; the direct trial evidence on walking volume does not exist here. Confidence: low, because no retrieved study tested walking itself.