Inclusion Criteria:

1. Age between 18 - 90 years (male or female)

2. Planned resection due to benign or malign disease in the left colon

3. Cognitive ability to take part in the study and understand the information he/she
receives about participating in the study

Exclusion Criteria:

1. Urgent medical condition requiring immediate care

2. Health condition classified as ASA IV

3. Albumin level less than 25 g/l

4. Inflammatory bowel disease (IBD) (ulcerative colitis or Crohn´s disease)

5. Disease that requires more than one anastomosis during the surgical procedure

6. Treatment with cortisone and/or other immunosuppressive medications less than one
month before surgery

7. Contraindications to general anaesthesia

8. Cognitive ability that limits the patient's ability to take part in the study and
understand the information he/she received about participating in the study, or the
patient does not agree to join the study