Inclusion Criteria:  Patients undergoing scheduled laparoscopic, robotic or laparotomic colorectal cancer surgery who undergo colorectal anastomosis. Both mechanical and manual colorectal anastomosis with or without diverting ileostomy. Negative intraoperative air-leak test. Height of the anastomosis: promontory or distal to it. Age≥18 years. Histology of Adenocarcinoma with or without prior neoadjuvant treatment. Any T, any N, any M. Informed consent signed by the patient and by the researcher.  Exclusion Criteria:  No performance of colorectal anastomosis. Colorectal tumor with histology other than adenocarcinoma or adenoma. Patients with psychiatric illnesses, addictions or any disorder that prevents understanding of surgery. Inability to read or understand any of the informed consent languages (Catalan, Spanish). Emergency surgery. Any patient who, due to his medical characteristics, presents a high individual risk when being included and completing the study.