Rheumatic heart disease is mainly caused by rheumatic fever inflammation, which is also related to genetic and environmental factors. 1. Rheumatic fever inflammation: rheumatic fever inflammation involving the heart can cause rheumatic fever heart disease, including rheumatic endocarditis, rheumatic myocarditis and so on. 2. Genetic factors: Rheumatic heart disease is also related to genetic factors, and some people carry genes that are more likely to make them suffer from rheumatic heart disease. 3. Environmental factors: poor sanitation can easily lead to the rapid spread of streptococcus, which can also increase the incidence of rheumatic heart disease. Rheumatic heart disease is caused by many reasons, not only including the above, the symptoms of rheumatic heart disease should attract enough attention, timely medical treatment for standardized examination and treatment, so as not to endanger the health of the body.