Arthritis is a disorder characterized by joint inflammation and swelling. This disease mostly affects the musculoskeletal system, and it is among the main causes of disabilities among human beings. There are different types of arthritis, but Osteoarthritis (OA) is the most common one that affects elderly people. The joints of patients suffering from arthritis tend not to behave the way they are supposed to. The cartilages will start wearing away, and the synovial fluid will reduce in quantity. This is what propels inflammation. Determining the cause of arthritis has proved to be difficult, but there are several factors that can cause it. Some scientists argue that arthritis is hereditary. The genes can transmit this disorder from one generation to another. Age is another factor. As people grow old, the joint cartilages will become brittle and have less power to repair them. For this reason, arthritis is common among the elderly. Weight is a contributing factor that can fuel the effects of arthritis. People who are overweight will experience the symptoms of arthritis more than people with normal weight. This is because the weight will partially damage the joints making them painful, especially on the hip and knee joints, which tend to wear out easily. People who have a previous injury are at high risk of getting arthritis. If the joints are damaged, their normal movement will be affected. Sportsmen who take part in high level sports are likely to experience symptoms of arthritis.