Parkinson’s disease may be caused mainly by genetic factors, aging of the nervous system, environmental factors, etc., and the onset of Parkinson’s disease by the interaction of multiple factors. 1. Genetic factors: Clinical studies show that 5% to 10% of Parkinson’s disease patients have a family history. 2. Aging of the nervous system: Parkinson’s disease occurs more often in middle-aged and elderly people, suggesting that the onset of Parkinson’s disease is related to the aging of the nervous system. 3. Environmental factors: agricultural or industrial toxins in the environment, such as herbicides, pesticides, rotenone, isoquinolines, etc. may be one of the causes of Parkinson’s disease. 4. Multi-factor interaction: Currently, medical science believes that Parkinson’s disease is not caused by a single factor, but by the interaction of multiple factors and the onset of the disease. For example, the aging of the nervous system and environmental factors can easily lead to the onset of Parkinson’s disease. If Parkinson’s disease is diagnosed, patients should maintain a good attitude and actively treat the disease in order to slow down its development.