After rectal cancer is cured, it is generally recommended not to drink alcohol as much as possible, but if the health condition is more stable after five years, a small amount of alcohol can be consumed if necessary. After surgery and during auxiliary radiotherapy for rectal cancer, one should never drink alcohol, so as not to affect the therapeutic effect. Excessive intake of alcohol will accelerate blood circulation and cause certain stimulation to gastrointestinal mucosa, thus triggering digestive system lesions. Therefore, for the consideration of one’s health, it is generally not recommended to consume alcohol for rectal cancer, and also not to consume alcohol if one’s physical condition is not good after cure. For people with high blood pressure, diabetes and other underlying diseases, it is even more inadvisable to drink alcohol. If alcohol consumption is necessary after rectal cancer is cured, it should be in small amount and should not be abused. It is recommended to take a light diet and avoid stimulating drinks. For details, please consult a professional physician for advice.