Surgical Errors claims.

Surgical error claims arise when a surgeon or surgical team makes a preventable mistake during an operation — or delays an operation that was urgently needed — causing injury to the patient. These errors can occur during any type of surgery, from routine procedures to complex operations, and span general, gastrointestinal and colorectal surgery.

Abdominal surgery produces a recognisable pattern of serious claims. A delayed appendicectomy can allow the appendix to rupture, causing peritonitis (major infection in the abdomen) and the need for major open surgery. Gall bladder removal carries a recognised serious complication: severing the common bile duct, which leads to bile leakage, peritonitis and complex reconstructive surgery. It can happen even with careful surgery — but a claim may arise where the duct was misidentified in circumstances where safe technique should have prevented it, or where the injury went unrecognised and untreated. An incarcerated hernia left unrepaired can strangulate, and bowel perforated during surgery — or bowel damage left unrecognised — can become infected and gangrenous, leaving the patient with a stoma bag that competent care would have avoided.

Other common surgical errors include wrong-site surgery (operating on the wrong body part), retained surgical instruments (leaving swabs, clips, or tools inside the patient), nerve damage during surgery, unnecessary surgery based on incorrect diagnosis, and complications from performing procedures beyond the surgeon's competence.

The WHO Surgical Safety Checklist is a critical standard — NHS trusts are required to follow it before every operation. Failures in the checklist process are powerful evidence. Consent issues under Montgomery v Lanarkshire (2015) are also relevant: surgeons must inform patients of material risks.

Compensation depends on the severity of the outcome. Minor surgical errors requiring corrective procedures typically settle for £10,000 to £50,000. Serious errors — bile duct injuries, peritonitis, a stoma that should never have been needed, or permanent disability — can result in awards of £100,000 to £2 million or more. The limitation period is 3 years from the date of injury or the date of knowledge.