Arthritis is a non-specific term for inflammation of joint. Inflammation is the body's first reaction to injury. When the joint is inflamed due to some internal of external injury it is called arthritis.

Inflammation serves several practical purposes. The influx of leukocytes facilitates the process of phagocytosis, by which damaged cells and other particulate matter are removed from the site of injury. Pain and tenderness serve to remind the sufferer to guard and protect the damaged part, so that the process of repair may be completed without interruption.

Inflammation of a joint may be the outcome of an isolated injury, or it may be a cumulative process that occurs in response to one or more of the following conditions below.

Some of the recognized causes of inflammatory lesions are :

  1. Rheumatoid Arthritis
  2. Osteoarthritis or Degenerative joint disease (primary or secondary)
  3. Connective tissue disease (acquired)
  4. Non-articular rheumatism (tendonitis,bursitis)
  5. Arthritis due to infection
  6. Traumatic or neurogenic disorder
  7. Neoplasm
  8. Miscellaneous local or systemic disease