This study looks at how well acupuncture works for helping people with Parkinson's disease (PD) who suffer from constipation. Acupuncture involves placing small needles at specific points on the body to help improve health. In this study, there are two groups: one gets real acupuncture, and the other gets a fake version called sham acupuncture. Some important things to know:

• The study lasts for 12 weeks, with check-ins at weeks 0, 4, and 12.
• Participants will need to keep a bowel diary and answer questions about their symptoms and quality of life.
• Tests like colonic transit time and anorectal manometry help measure how well the digestive system is working.

To join, you must be 35-80 years old with PD and constipation, and not involved in other clinical trials recently. You shouldn’t have serious health issues or recent surgeries that could affect digestion. Pregnant women are excluded. This study helps understand if acupuncture can be a good treatment option for constipation in PD patients.