The causes of arthritis: 1, excessive strain on the joints Excessive strain on the joints is a major factor in the onset of arthritis, such as long-term heavy physical work, or athletes with joint strength over the limit, due to long-term compression of the knee joint, the soft tissue of the joint is more severely damaged than normal people, and therefore more likely to become the onset of arthritis people. 2, the body is too obese arthritis also like to develop and obese people, the same, obese people due to their own weight, will cause long-term load on the lower extremities, so the joint soft tissue will also be subject to a lot of wear and tear, which leads to arthritis attack. The onset of arthritis is also characterized by geography, especially in the south, which is caused by the humid climate of the south, the long-term humid environment is likely to cause the body’s qi and blood flow is blocked, the blood in the bone does not run smoothly, over time it is easy to arthritis. 4, the joint is infected If there is a previous joint infection, in old age also prone to arthritis, this is because the joint cartilage received damage in the past, easy to cause secondary arthritis. 5, genetic control Arthritis is also a hereditary disease, research shows that the onset of arthritis has a tendency to gather in families, if the parents have arthritis, the next generation of people have a greater chance of developing arthritis, including rheumatoid arthritis patients have a probability of 11% of the first-degree relatives.