Parkinson’s disease has limb tremor, weakness, mask face and other symptoms, so that patients feel that there is a loss of elegance, Parkinson’s patients often have a psychological sense of inferiority, unwilling to participate in social activities, do not go to public places, and alienated from interpersonal communication. In the course of treatment and the development of Parkinson’s, Parkinson’s patients will also have some anxiety, depression, insomnia, dementia and other Parkinson’s complications. Infection is a complication that poses a threat to Parkinson’s disease, and general respiratory infections and fever can aggravate the symptoms of the disease. Due to low immune function, colds often occur, but also prone to bronchitis, pneumonia, gastroenteritis, etc. In the late stage of bedridden patients, complete loss of self-care ability, can not get up and sit independently, or even can not turn over on their own, coupled with malnutrition, skin pressure, often resulting in decubitus ulcers. Pneumonia, aspiration pneumonia, and cardiac failure are common complications in patients with advanced disease, which can eventually lead to death. Another complication of Parkinson’s disease is digestive disorders. Patients with Parkinson’s disease may suffer from digestive complications due to vegetative nerve dysfunction. It manifests as dysphagia, which is due to the impaired coordinated movement of the pharyngeal muscles, leading to slow feeding and longer chewing, causing food to accumulate in the mouth and throat, and can lead to gagging and choking if the food is eaten too quickly; delayed gastric emptying, which manifests itself as fullness, nausea, and vomiting after a meal; small intestinal motility dysfunction, which leads to a feeling of abdominal distension; and colon dysfunction, which is mainly manifested as constipation. The various complications of the digestive system have the same pathophysiologic basis, all due to excessive tension in the gastrointestinal smooth muscle, slow movement, and poor coordination with each other. What are the complications of Parkinson’s disease? Through the introduction of the above we all have an understanding of the complications of Parkinson’s, after understanding the serious complications of Parkinson’s disease, patients should be timely treatment, for the treatment of Parkinson’s disease, early detection, early treatment, in order to early benefit. So far, although Parkinson’s disease can not be cured, but at present the clinical through the reasonable use of medication (especially early), middle and late deep brain electrical stimulation and rehabilitation therapy combined with a comprehensive treatment method, can greatly reduce the symptoms of the patient, so that the patient can live independently and maintain a better quality of life.