The causes of frequent urination in Parkinson’s disease are mainly the following: 1. Elderly patients with Parkinson’s have frequent urination, which is considered to be related to the patient’s mood, because most patients in the later stages of Parkinson’s will experience anxiety and depression, manifesting as dizziness and lightheadedness, and some for frequent urination, especially at night when urination is more frequent. 2. Male patients with Parkinson’s have frequent urination, which is considered to be related to the patient’s prostate The reason is that male patients will have prostate enlargement in their old age and will also experience frequent urination. 3. The frequency of urination in Parkinson’s patients is related to the ankylosis of the bladder forced urinary muscle, and patients will have a feeling of a burst of urination. Therefore, the frequency of urination that occurs in Parkinson’s disease is mainly considered for the above three reasons.