After rectal cancer surgery, one can eat Yuanshu (cilantro). Cilantro is warm and pungent in nature, its main effect is to eliminate food and lower the qi, sweat through the rash, wake up the spleen and neutralize the middle, it can promote peristalsis of the intestines and stomach, which can help to open up the appetite, and the special fragrance of cilantro can stimulate the secretion of sweat glands, prompting sweating, which can be used for treating the stagnation of food, bad appetite, poor transmission of measles at the early stage, prolapse of the anus and other diseases. It can be consumed in moderation, and the medicinal use should follow the doctor’s prescription. After rectal cancer surgery, patients need to fast for 3-4 days, start with fluids or semi-fluids, and gradually resume diet. When eating fluids, you can choose lotus root powder, rice porridge, rotten noodles and so on. After wound healing, patients can eat foods rich in fiber and good for digestion, such as celery, cabbage, mushrooms and so on. You need to pay attention to small meals and avoid cold, spicy, stimulating foods and foods that are easy to produce gas.