You can eat bread after having a colonoscopy. Generally after having a colonoscopy, it is recommended to eat after half an hour if it is a normal colonoscopy. If you are doing painless colonoscopy, you need to eat after two hours. The main thing is to eat light food, eat more fresh vegetables, fruits, or drink thin rice, rice soup, clear soup noodles and other types of food, as little as possible to eat greasy, fried food. If the treatment is given under colonoscopy or biopsy is taken, it is recommended to eat after four hours. If the treatment is endoscopic polyp cutting or ESD polyp removal, it is necessary to fast for 24 hours before liquid or semi-liquid food. In conclusion, after a colonoscopy, it is first recommended to drink water, and if there are no symptoms for about half an hour after drinking warm boiled water, it is better to proceed with fluids and semi-fluids.