Joint Pain is also described by inflammation, soreness, increased warmth or burning, or stiffness.
Joints are made up of cartilage, ligaments, bursas (fluid-filled sacs that help cushion the joint), and the synovial membrane (lining of the joint capsule that secretes synovial fluid to lubricate the joint). When any of these supporting structures become irritated or inflamed, you feel joint pain.
Joint pains may either last briefly or it may get chronic. Joint pain is caused due to several reasons. Sudden joint pain is caused due to a mild muscle or ligament sprain, or a dislocation. On the other hand, chronic joint pain can be a symptom of serious and life-threatening conditions, like rheumatoid arthritis, osteoarthritis, or bone cancer.