The name rheumatoid is certainly not new to anyone and is one of the diseases with a very high incidence today. The causes of rheumatoid disease are still not clear, but there are some factors that can be identified, such as environment, infection, genetics, endocrine disorders, etc. Genetic factors. If one of the parents has rheumatoid disease, the probability of having rheumatoid disease in the child is 1.5 times higher than the average person. Also, genetic factors are one of the main causes of rheumatoid diseases. Infection factor. Rheumatoid diseases can be caused when the body is infected by invasive bacteria or viruses, such as EBV, influenza virus and B19 virus. Rheumatism is also affected by sex hormones, and the incidence of rheumatism in women is much higher than that in men. Some women often have the disease reduced during their pregnancy, but it tends to recur after the baby is born. Some other factors such as trauma, mental stimulation, cold, and smoking can also cause rheumatoid disease. Rheumatoid disease is a systemic disease with a long course. The most common manifestations are joint pain, swelling and gradually increasing joint dysfunction, which can eventually develop into joint deformity and joint movement disorders. The current treatment for this disease is mainly combined therapy and delaying the disease process. In daily life, patients with rheumatoid disease should actively go to the hospital for treatment and control of the disease. Those who do not have rheumatoid disease should also pay more attention to their habits in daily life to prevent the disease and have a healthy life.