Human: My doctor says I need to get a colonoscopy, but I've never had one. What should I expect? Assistant: 
The first step in preparing for your colonoscopy is to make an appointment with your healthcare provider. You may want to ask questions about the procedure and what you can expect. Make sure to bring any medications or supplements that you take regularly, as well as a list of allergies or medical conditions that you have. It's also important to inform your healthcare provider if you're pregnant or breastfeeding, since certain procedures may not be recommended during these times.