In general, you can drink water about 3 days after colostomy reduction, which varies from person to person. After colostomy, patients can basically drink water and eat fluids about 3 days after the operation, and after there is no adverse reaction, they can gradually transition to semi-fluids, such as soft noodles, etc. At this time, they can usually be discharged from the hospital, but there are special circumstances, such as the incision is infected, the time needed for recovery will be prolonged. After colostomy, patients should pay attention to rest in daily life, do not overwork. Also pay attention to have a light diet, avoid spicy and stimulating food, drink more water, eat more fresh fruits, vegetables and high quality protein diet to facilitate the recovery. Postoperative patients have questions, should actively communicate with healthcare professionals, can consult their own competent doctor to clarify specific related issues.