Arthritis consists of more than 100 different condition which range from relatively mild forms of tendinitis and bursitis to crippling systemic forms, such as rheumatoid arthritis. It includes pain syndromes such as fibromyalgia and arthritis-related disorders, such as systemic lupus erythematosus, that involve every part of the body.  Here is our arthritis dictionary.

  • Ankylosing spondylitis (AS)  is a chronic inflammatory disease that primarily affects the sacroiliac joints (where the spine attaches to the pelvis), spine, and hip joints.
  • Calcium pyrophosphate dihydrate (CPPD) crystal deposition disease occurs when these crystals collect in joints and the tissues surrounding the joints.
  • Ehlers-Danlos syndromes (EDS) are a collection of genetic disorders that affect connective tissue. People who have EDS have problems with their collagen, a protein that adds strength and elasticity to connective tissue.
  • Fibromyalgia  is a syndrome characterized by long-lasting widespread pain and tenderness at specific points on the body.
  • Fifth disease, also called erythema infectiosum, is a mild viral illness that most commonly affects children.
  • Giant cell arteritis (GCA), also called temporal arteritis, is a type of vasculitis in which the walls of the medium-sized and large-sized arteries of the body become inflamed.
  • Gout is a form of inflammatory arthritis that causes sudden, severe pain, swelling and tenderness – most often in the large joint of the big toe.
  • Juvenile arthritis (JA) is an umbrella term used to describe the many autoimmune and inflammatory conditions that can develop in children ages 16 and younger.
  • Lyme disease is an infectious disease that can cause arthritis as one of its symptoms. The infection occurs when a deer tick that is infected with the spirochete bacteria Borrelia burgdorferi bites a human and transmits the bacteria to the human.
  • Myositis is defined as the inflammation of muscles (“myo” means muscle and “itis” means inflammation). The inflammatory myopathies are a group of disorders characterized by inflammation and weakness mainly of the muscles closest to the trunk of the body (proximal muscles).
  • Osteoarthritis (OA) is one of the oldest and most common forms of arthritis and is a chronic condition characterized by the breakdown of the joint’s cartilage.
  • Psoriatic arthritis (PsA) is a type of chronic inflammatory arthritis associated with the chronic skin condition psoriasis, which is believed to be an inherited condition.
  • Raynaud’s phenomenon occurs when the blood vessels that feed your fingers and toes constrict in reaction to cold or emotional stress (this event is called a vasospastic attack).
  • Reactive arthritis, formerly known as Reiter’s syndrome, is an inflammatory form of arthritis that occurs as a reaction after an infection in another part of the body.
  • Reflex sympathetic dystrophy syndrome, or RSDS for short, involves a disturbance in the sympathetic nervous system which is the network of nerves located alongside the spinal cord and controls certain bodily functions, such as opening and closing blood vessels or sweat glands. It primarily affects the hands and feet.
  • Rheumatoid arthritis (RA) is a form of inflammatory arthritis and an autoimmune disease. In RA, for reasons no one fully understands, the immune system – which is designed to protect our health by attacking foreign cells such as viruses and bacteria – instead attacks the body’s own tissues, specifically the synovium, a thin membrane that lines the joints.
  • Sjögren’s syndrome is an autoimmune disease. A healthy immune system normally protects the body from harm, but in a person with an autoimmune disease, the body’s immune system attacks its own tissues and cells.
  • Adult Still’s disease is a disorder that has characteristics similar to those of the systemic-onset variation of juvenile rheumatoid arthritis, except that it occurs in adults. Its symptoms include a high fever that spikes in the evening, a rash that accompanies the fever spike, muscle aches and joint pain.
  • Lupus is one of many disorders of the immune system known as autoimmune diseases. In autoimmune diseases, the immune system turns against the body it’s designed to protect for unknown reasons affecting nearly every organ system in the body, including the skin, joints, kidneys, heart, lungs, and central nervous system.
  • SLE is an inflammatory, autoimmune disease that affects nearly every organ system in the body, including the skin, joints, kidneys, heart, lungs, and central nervous system. SLE is only one type of lupus.
  • Tendinitis is when the tendon will become inflamed.  Tendinitis usually is caused by a specific injury or by repetitive overuse, especially when using poor body position.

Source: http://www.arthritis.org/conditions-treatments/disease-center/