Chondromalacia patellae is a term used to describe the damage or softening of the cartilage on the underside of the kneecap. It is similar to patellofemoral pain syndrome (runner's knee) in which the pain is felt under and around the kneecap. This condition is common among young athletics but may also occur in older adults who have arthritis of the knee.
Shoulder pain has several possible causes. If shoulder pain increases as you raise your arm, and the pain is worse than when it’s straight out at 90 degrees, your problem may be impingement.
People may notice elbow bursitis as a squishy lump on the back of their elbow. Often this seemingly appears out of nowhere, or they may remember something that led to the onset of their symptoms.
Hearing a cracking or popping in the shoulder can be unsettling. However, unless it accompanies pain, swelling, or other symptoms, joint cracking and popping are generally harmless.