The research design was a two-group unblinded, randomized clinical trial in 90 adult patients undergoing colorectal cancer surgery who are treated in the ICU, HCU and wards of Dharmais Cancer Hospital. Subjects who meet the criteria are divided into 2 (two) groups: the group given Lactobacillus casei Shirota and Lactobacillus acidophilus probiotics. Assessment of gastrointestinal function using the I-FEED score for early feeding was carried out on the second day after surgery. Sepsis diagnosis used the NEWS2 scoring assessed on the second, fourth, and sixth days of treatment. CRP levels were measured three times, namely during perioperative visit before surgery, four hours before surgery and three days after surgery. IL-6 levels were measured twice, namely perioperative visit before surgery and three days after surgery. Length of stay was calculated from after surgery until the patient was discharged.