What is Arthritis?
The word arthritis actually means joint inflammation, and that is how it is used by clinicians and biomedical researchers.  In the public health world however, arthritis is used as a shorthand term for arthritis and other rheumatic conditions—a label for the more than 100 rheumatic diseases and conditions that affect joints, the tissues which surround joints and other connective tissue. The pattern, severity, and location of symptoms can vary depending on the specific form of the disease. Typically, rheumatic conditions are characterized by pain and stiffness in and around one or more joints. The symptoms can develop gradually or suddenly. Certain rheumatic conditions can also involve the immune system and various internal organs of the body.

Who is at risk for Arthritis?
Certain factors are associated with a greater risk of arthritis. Some of these risk factors are modifiable while others are not.

Non-modifiable risk factors
Age: The risk of developing most types of arthritis increases with age.
Gender: Most types of arthritis are more common in women, accounting for 60% of all cases. Gout is more common in men.
Genetic: Genes have been identified that are associated with a higher risk of certain types of arthritis, such as rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE).

Modifiable risk factors
Overweight and Obesity: Excess weight can contribute to both the onset and progression of knee osteoarthritis.
Joint Injuries: Damage to a joint can contribute to the development of osteoarthritis in that joint.
Infection: Many microbial agents can infect joints and potentially cause the development of various forms of arthritis.
Occupation: Certain occupations involving repetitive knee bending are associated with osteoarthritis of the knee.

What causes Arthritis?
Elevated uric acid levels cause gout, and specific infections can cause arthritis of a joint. The causes of many of the other forms of arthritis are unknown. Scientists are studying the role of factors such as genetics, lifestyle, and environment on the various types of arthritis.

What are the most common types of Arthritis?
The most common form of arthritis in the Unites States is osteoarthritis followed by gout, fibromyalgia, and rheumatoid arthritis.

What are the symptoms of Arthritis?
The pattern and location of symptoms can vary depending on the types of arthritis. Generally, people with arthritis feel pain and stiffness in and around one or more joints. The onset of arthritis symptoms can develop gradually or suddenly. Arthritis is most often a chronic disease, so symptoms may come and go, or persist over time.

What should I do if I think I have Arthritis?
If you have pain, stiffness, or swelling in or around one or more of your joints, talk to your doctor. It is important to keep in mind that there are many forms of arthritis, the specific diagnosis of the type of arthritis you have is necessary to direct the proper treatment. Although there is no cure for most types of arthritis, early diagnosis and appropriate management are important, especially for inflammatory types of arthritis. An early diagnosis and appropriate treatment can make a difference in pain and joint damage.

Can I prevent Arthritis?
Depending on the form of arthritis, there are steps that can be taken to reduce your risk of arthritis. Maintaining an appropriate body weight has been shown to decrease the risk of developing osteoarthritis and gout. Protecting your joints from injuries or overuse can reduce the risk of osteoarthritis.