Arthritis is an inflammation of the joints. It can affect one joint or multiple joints. There are more than 100 different types of arthritis, with different causes and treatment methods. Two of the most common types are osteoarthritis (OA) and rheumatoid arthritis (RA).
Cartilage is a firm but flexible connective tissue in your joints. It protects the joints by absorbing the pressure and shock created when you move and put stress on them. A reduction in the normal amount of this cartilage tissue cause some forms of arthritis.
Normal wear and tear causes OA, one of the most common forms of arthritis. An infection or injury to the joints can exacerbate this natural breakdown of cartilage tissue. Your risk of developing OA may be higher if you have a family history of the disease.
Another common form of arthritis, RA, is an autoimmune disorder. It occurs when your body’s immune system attacks the tissues of the body. These attacks affect the synovium, a soft tissue in your joints that produces a fluid that nourishes the cartilage and lubricates the joints.
RA is a disease of the synovium that will invade and destroy a joint. It can eventually lead to the destruction of both bone and cartilage inside the joint.
The exact cause of the immune system’s attacks is unknown, but scientists have discovered genetic markers that increase your risk of developing RA tenfold.
Joint pain, stiffness, and swelling are the most common symptoms of arthritis. Your range of motion may also decrease, and you may experience redness of the skin around the joint. Many people with arthritis notice their symptoms are worst in the morning.
In the case of RA, you may feel tired or experience a loss of appetite due to the inflammation that immune system activity causes. You may also become anemic — meaning your red blood cell count decreases — or have a slight fever. Severe RA can cause joint deformity if left untreated.
Diagnosis of arthritis will start with your doctor performing a physical exam. During the exam, your doctor will check for fluid around the joints, warm or red joints, and limited range of motion in the joints.
Extracting and analyzing inflammation levels in your blood and joint fluids can help your doctor determine what kind of arthritis you have.
Doctors commonly use imaging scans such as X-ray, MRI, and CT scans to produce an image of your bones and cartilage. This is so they can rule out other causes of your symptoms, such bone spurs.
Diagnosis of arthritis will start with your doctor performing a physical exam. During the exam, your doctor will check for fluid around the joints, warm or red joints, and limited range of motion in the joints.
Extracting and analyzing inflammation levels in your blood and joint fluids can help your doctor determine what kind of arthritis you have.
Doctors commonly use imaging scans such as X-ray, MRI, and CT scans to produce an image of your bones and cartilage. This is so they can rule out other causes of your symptoms, such bone spurs.