persistent knee pain lasting over a month from a jogging injury where there was a loud "pop" could be many things but a full or partial tear of one of the ligaments tendons or menesci would be high on the list as well as cartilege tears. it would be in your fiance's best interest to see a good orthopedist (he should have done this weeks ago). he may need some imaging studies like an mri of that painful knee. i sounds like he damaged the ligaments under the knee. which only hurts when you pressure on the knee like kneeling of touching. he should get it checked out soon. the longer he waits the worse it will become because of inflammation under the knee. this will cause the knee to eventually lock in a slight bent position and then it will be difficult to move and that is something that you do not want.
issue with knee. my fiancé is 41 years old and he is fairly active with jogging and walking. about a month ago he felt something pop really hard in his knee and he had some pain with it along with a bit of swelling. he figured he would stay off his knee for a while and it would heal itself. he is still has the popping sound when he walks or moves his knee and he says that it feels like something is "rolling" around inside under the kneecap. no pain unless the knee is pressed on. what would be the issue? .