Educational information only. INNERSTANDIN does not provide medical advice, diagnosis or treatment, establish an individual cause or risk, or replace qualified clinical care. Read the full boundary →

    Learn / Operations & surgery

    Understand the operation. Follow the biology.

    Explore what an operation involves, the body systems connected to it, and questions to take to your clinical team.

    Education, not personal advice. Discuss decisions and recovery with your clinical team. For urgent, severe or worsening symptoms, seek appropriate medical support.

    01 / Find a guide

    Search operations

    Search by the everyday name or clinical name, then browse by body area.

    18 guides shown

    01 /Appendix removalAppendectomy (appendicectomy)Understand why an inflamed appendix may need urgent treatment, how it is removed and what recovery can involve.02 /Gallbladder removalCholecystectomyExplore the role of bile, treatment choices for gallstones and what changes when the gallbladder is removed.03 /Inguinal hernia repairInguinal hernia repair (herniorrhaphy or hernioplasty)Understand a groin hernia, when repair or monitoring may be discussed, and the choices around mesh and surgery.04 /Bowel resectionSmall bowel resection, colectomy or colorectal resectionUnderstand why part of the bowel may be removed, what happens to the route food takes and what recovery can involve.05 /Stoma formationIleostomy or colostomy formationUnderstand how a bowel stoma is made, why it might be needed and how to manage everyday life and problems.06 /Stoma reversalClosure of an ileostomy or colostomyExplore when a stoma may be reversed, how the bowel is reconnected and what bowel function can be like afterwards.07 /Lumbar decompression surgeryLumbar decompression, including laminectomy or discectomyExplore why pressure on nerves in the lower back may lead to decompression, what surgery changes and what recovery can involve.08 /Hip replacementTotal hip arthroplastyUnderstand how a damaged hip is replaced, the alternatives and evidence, and what preparation, rehabilitation and life with an implant can involve.09 /Knee replacementTotal or partial knee arthroplastyUnderstand how the knee works, why replacement may be offered, the choice between partial and total surgery, and what recovery can involve.10 /Coronary angioplasty and stentsPercutaneous coronary intervention (PCI)Understand why coronary arteries narrow, how angioplasty and stents work, the choices and risks, and what recovery and ongoing medicines can involve.11 /Aortic valve replacementSurgical aortic valve replacement or transcatheter aortic valve implantation (TAVI)Understand adult aortic valve disease, surgical replacement and TAVI, the choices around a new valve, and recovery and follow-up.12 /Coronary artery bypass surgeryCoronary artery bypass grafting (CABG)Understand why coronary bypass may be recommended, how grafts restore a route for blood to the heart muscle, the alternatives, risks and recovery.13 /Pacemaker implantationPermanent cardiac pacemaker implantationUnderstand the heart’s electrical system, why a pacemaker may be offered, the procedure, recovery and living with an implanted device.14 /Implantable cardioverter defibrillator implantationImplantable cardioverter defibrillator (ICD) implantationUnderstand dangerous heart rhythms, why an ICD may be offered, device choices and what to expect from implantation, shocks, recovery and follow-up.15 /Cardiac catheter ablationCatheter ablation for cardiac arrhythmiasUnderstand the heart’s electrical circuits, why catheter ablation may be offered for an irregular rhythm, the alternatives, risks, recovery and follow-up.16 /Carotid endarterectomyCarotid endarterectomy (CEA)Understand carotid artery narrowing, stroke and TIA warning signs, the evidence behind surgery and stenting, and what preparation and recovery can involve.17 /Abdominal aortic aneurysm repairAdult abdominal aortic aneurysm (AAA) repairUnderstand abdominal aortic aneurysms, screening and surveillance, emergency and planned repair, the trade-offs between open surgery and EVAR, and the follow-up each can involve.18 /Leg artery bypass surgeryLower-limb peripheral arterial bypass graftingExplore how a bypass reroutes blood around a narrowed leg artery, when it may be considered, the alternatives, graft choices, risks and recovery.

    02 / Body areas

    Browse the current collection

    03 / Coverage map

    Areas planned for future coverage

    Current collections include general surgery, bowel & stomas, bones, joints & spine, and heart & circulation. The areas below are a roadmap, not available guides or a complete list of operations.

    • Brain & nervesPlanned
    • Chest & lungsPlanned
    • Kidneys & urinary systemPlanned
    • Reproductive healthPlanned
    • Endocrine surgeryPlanned
    • EyesPlanned
    • Ear, nose & throatPlanned
    • Skin & reconstructionPlanned
    • TransplantationPlanned
    • Children’s surgeryPlanned

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    Related pathways

    These links provide context for further exploration. Site links are not clinical evidence.