The purpose of this clinical trial study was to evaluate the prevalence of colon cancer among the symptom (s) of anterior resection syndrome that may occur after surgery in patients for efficacy and safety in Metchnik probiotic ingestion.

The purpose of the clinical trial is to evaluate the efficacy and safety of the syndrome that may occur after colon cancer surgery, To evaluate the efficacy and safety of the improvement effect of the defecatory activity on the improvement of the Medienkov probiotics biotics on the patients who have the deficit function and planned to surgery.

Inclusion Criteria:

1. Adult male or female aged 20 to over 75 years old
2. As histologically and radiologically diagnosed S colon cancer, those who is scheduled for anterior resection
3. Those who have been agreed to participate in this trial (through Informed consent) before initiation of clinical trial.

Exclusion Criteria:

1. Those who have metastatic colorectal cancer screening
2. Those who have urinary incontinence or fecal incontinence
3. Those who received preoperative chemotherapy or radiotherapy
4. Those who have a history of severe cerebral vascular disease (cerebral infarction, cerebral hemorrhage, etc.), severe cardiac disease (unstable angina pectoris, myocardial infarction, arrhythmia requiring heart failure heart failure therapy)
5. Those who have neurologist or psychologically important psychiatric history or current disease
6. Those who have alcohol addiction, substance abuse
7. Those who have Immune system, infectious infectious disease, gastrointestinal tract disease patients (inflammatory bowel disease)
8. Those who have uncontrolled hypertension, diabetes patients
9. Those who have creatinine with more than twice from normal upper limit in site
10. Those who have AST(GOT) or ALT(GPT) with more than three times from normal upper limit in site
11. Those who have probiotics, antibiotics, continually within the last one week
12. Those who is pregnant women, breastfeeding women and have pregnancy plans or do not agree to appropriate contraception methods choice
13. Those who have been participated within three months or have plans to participate in another clinical trial after the start of this clinical trial
14. under the investigator's judgment, those who is not qualified to participate this clinical trial