Yes it could be. Many time people come because of the blug behind the knee or the side of the knee, we take MRI we find meniscus tear or arthitis. Thanks.
Hi I've finished physical therapy for a knee injury and now ive noticed that on both legs my hamstrings there are knots on them and its bulging out.
Uncertain why spasm? Uncertain why but suspect due to the PT. You need stretches. This sounds like muscle spasm but not clear why both legs. You need to discuss with your physician.