Connective tissue arthritis can be the result of normal, everyday wear or it may be the result of genetic predisposition, according to Healthline. Osteoarthritis is the reduction in the amount of cartilage and bone due to normal everyday processes and can be made worse by infection or injury. Rheumatoid arthritis is the result of an immune response that depletes the fluid that lubricates joints and consequently leads to destruction of cartilage and bone.
Arthritis typically affects individuals over the age of 65. It is more common in women than men and is more likely to afflict those who are overweight. The most common signs of arthritis are stiffness or pain in the joints occurring in the morning, states Healthline. Arthritis can also cause joint swelling, skin redness and a reduced range of motion. Doctors take samples of blood and joint fluid and use imaging technologies such as MRI scans to determine the cause of arthritis and the extent of the disease.
Symptoms of arthritis can also be the result of connective tissue diseases including mixed connective tissue disease and undifferentiated connective tissue disease. These conditions are considered autoimmune disorders and will typically include a range of other medical issues that present over the course of many years, according to Medline Plus.