The daily changing of postoperative dressings is a widespread practice, often continuing until the 5th-7th day after surgery. In theory, dressings aim to reduce the risk of superficial surgical site infections (SSIs). However, several studies have suggested that early removal of the dressing does not significantly impact the rate of superficial SSIs, and this approach is now applied in clinical practice by several teams. A Cochrane review indicated that the absence of dressing does not appear to be harmful, though it emphasized the very low level of evidence provided and the need for high-quality randomized controlled trials. In this study, the investigators aim to provide high-level evidence on the effect of stopping dressings from the 1st postoperative day and the lack of impact on the risk of SSIs, to standardize practices and enable recommendations.

Inclusion Criteria:

• Patient of legal age (≥18 years)
• Scheduled for elective abdominal surgery requiring a skin incision of at least 4 cm long listed below:

All pancreatectomies, All hepatectomies, All splenectomies, All adrenalectomies, All bariatric surgeries, All gastric surgeries, including gastrectomy and reflux surgery, All parietal surgeries; ventral hernia repairs, inguinal or femoral hernia repairs, with or without mesh placement..

All small bowel resections, Laparotomy cholecystectomies, All duodenal surgeries, Right, transverse or left colectomy, by laparotomy or laparoscopy, provided that there is a skin incision for extraction of the surgical specimen, but without the presence or creation of a stoma Proctectomy but without the presence or creation of a stoma

• Class I or II (clean or clean-contaminated) according to the ALTEMEIER classification
• Affiliated in a Social Security scheme (beneficiary or entitled person, excluding AME)
• Have signed an informed consent form

Exclusion Criteria:

• Presence or completion of a stoma
• Previous abdominal surgery in the month prior to inclusion
• Emergency surgery
• Outpatient surgery
• Closure by biological glue
• Active bacterial infection at the time of surgery or recent antibiotic therapy (up to 15 days before surgery)
• Neutrophil count < 500/mm3 at time of surgery
• Grade B or C cirrhosis (Child-Pugh classification)
• Pregnancy
• Breast-feeding
• Patient under guardianship or curatorship
• Patient deprived of liberty by judicial or administrative decision
• Patient unable to perform perioperative care

The procedures carried out with the French data privacy authority (CNIL, Commission nationale de l'informatique et des libertés) do not provide for the transmission of the database, nor do the information and consent documents signed by the patients.

Consultation by the editorial board or interested researchers of individual participant data that underlie the results reported in the article after deidentification may nevertheless be considered, subject to prior determination of the terms and conditions of such consultation and in respect for compliance with the applicable regulations.

Beginning 3 months and ending 3 years following article publication. Requests out of these time frame can also be submitted to the sponsor

Researchers who provide a methodologically sound proposal.