A bulge above the knee may be associated with knee joint effusion, osteoarthritis of the knee and so on.
1. Knee joint effusion: trauma or chronic injury to the knee joint can lead to synovial inflammation and other abnormalities in the knee joint, making the fluid in the joint cavity increase, resulting in a lump above the knee joint, which can also be accompanied by limited mobility.
2. Knee osteomalacia: various reasons lead to abnormal bone proliferation in the knee joint, can make the knee joint above the lump, can also be accompanied by knee pain, limited activities and other manifestations.
A bulge above the knee can also be caused by other reasons, it is recommended to go to the hospital in a timely manner to clarify the cause of the disease after treatment, so as not to delay the condition.