Many patients and their families are concerned about “Does Parkinson’s disease affect the life expectancy of patients?” First of all, Parkinson’s disease itself does not affect the life expectancy of patients. It is the complications of Parkinson’s disease that pose a great threat to the lives of people with Parkinson’s disease, which usually occur in the later stages of the disease. What complications can arise from Parkinson’s disease? Trauma: Patients with Parkinson’s disease can easily fall because of their unstable body balance, resulting in head or body injuries. Therefore, trauma is a life-threatening complication for Parkinson’s disease patients, and falls must be prevented. Infection: General respiratory infections and fever can worsen Parkinson’s disease symptoms. Patients with low immune function have frequent colds and are also prone to bronchitis, pneumonia, gastroenteritis, etc. Patients who are bedridden in the late stages completely lose the ability to care for themselves, cannot get up and sit independently, cannot turn over on their own, and with malnutrition, skin pressure often leads to bedsores. Pneumonic pneumonia, aspiration pneumonia, and heart failure are common complications in late stage patients, which can eventually lead to death. Therefore, infection is also a life-threatening complication for patients with Parkinson’s disease and requires attention to prevention. Digestive system: Patients with Parkinson’s disease may suffer from digestive system complications due to plant nerve dysfunction. This is manifested as dysphagia, due to impaired coordination of pharyngeal muscles, resulting in slow eating and longer chewing, causing food to accumulate in the mouth and throat, which can lead to choking and choking if eating too quickly; delayed gastric emptying, manifested as postprandial fullness, nausea and vomiting; poor small intestine motor function, resulting in a feeling of bloating; and poor colon function, mainly manifested as constipation. The various complications of the digestive system have the same pathophysiological basis, all of which are due to excessive tension of the smooth muscles of the stomach and intestines, slow movement and poor coordination with each other. In summary, all of these are conditions that Parkinson’s disease can cause, and need to be treated and prevented in order to reduce the suffering of Parkinson’s disease patients.