Understanding appendix surgery
The appendix is a narrow, finger-shaped tube attached to the first part of the large intestine in the lower right abdomen. When its opening becomes blocked — by a hardened piece of stool, swollen lymphoid tissue or, rarely, a growth — bacteria multiply inside, the wall becomes inflamed, and appendicitis follows.
The pattern is characteristic. Pain usually starts as a vague ache around the navel, then over some hours shifts and settles firmly in the right lower abdomen, becoming sharper. Appetite disappears, nausea sets in, and there is often a low-grade fever. Coughing, walking or going over a speed breaker makes the pain noticeably worse.
Appendicitis does not resolve reliably on its own. Within twenty-four to seventy-two hours an untreated appendix can perforate, spilling infected contents into the abdominal cavity and causing peritonitis or an abscess — a far more serious illness needing a longer operation and a longer stay. This is why appendicitis is treated urgently rather than watched.
Laparoscopic appendectomy is now the standard approach. Three small ports allow the surgeon to inspect the entire abdomen — useful because right lower abdominal pain in women can also come from the ovary or fallopian tube — remove the appendix cleanly, and wash out any infection. Recovery is markedly quicker than with the traditional open incision.
Types & classification
The usual presentation — an inflamed appendix causing pain over hours to a day or two. Needs prompt surgery.
The appendix has burst and infection has spread into the abdominal cavity. Requires urgent surgery, thorough lavage and a longer course of antibiotics.
The body has walled off the infection into a mass. Often managed first with antibiotics and drainage, followed by interval appendectomy six to eight weeks later.
Repeated milder episodes of right lower abdominal pain. Elective laparoscopic removal is usually curative.
Removal of a normal appendix during another abdominal operation, in selected circumstances.
Symptoms & causes
Symptoms to look for
- Pain beginning around the navel and shifting to the right lower abdomen over several hours
- Pain that worsens with coughing, walking or sudden movement
- Loss of appetite — often the earliest and most consistent sign
- Nausea and vomiting starting after the pain, not before
- Low-grade fever, rising if the appendix perforates
- Constipation or, less often, loose stools
- Abdominal tenderness and guarding on examination
- Sudden relief of pain followed by worsening generalised pain — a warning that perforation has occurred
Common causes & risk factors
- Blockage of the appendix opening by a faecolith — a hardened piece of stool
- Swelling of lymphoid tissue in the appendix wall after a viral or bacterial infection
- A low-fibre diet and chronic constipation
- Intestinal worm infestation, in some cases
- Rarely, a tumour or a carcinoid of the appendix
- Peak incidence between ten and thirty years of age, though it can occur at any age
When to see a surgeon
- Right lower abdominal pain lasting more than a few hours, especially with loss of appetite
- Pain that started near the navel and has moved to the right
- Abdominal pain with fever and vomiting
- Pain that makes it hurt to cough, walk or go over a bump
- Do not take painkillers and wait it out — masking the pain delays diagnosis and increases the chance of perforation
How it is diagnosed
Localised tenderness and rebound at McBurney’s point remains the cornerstone of diagnosis, supported by scoring systems such as Alvarado.
A raised white cell count and CRP support the diagnosis, though normal values do not exclude it.
First-line imaging, especially in children, young women and pregnancy. Also excludes ovarian and urinary causes.
The most accurate test for appendicitis, used when the diagnosis is unclear or complications such as perforation or abscess are suspected.
Essential to rule out urinary infection, stones and ectopic pregnancy, which can mimic appendicitis closely.
Treatment options
The appropriate option depends on your diagnosis, examination and general health. Your clinician will explain the benefits and risks of the available approaches.
The standard treatment. Three small ports, the appendix base secured and divided, the specimen removed in a bag, and any infection washed out. Allows inspection of the whole abdomen if the appendix looks normal.
A small incision in the right lower abdomen. Still appropriate in some perforated cases, in very late presentations, or where laparoscopy is not safe.
Can settle a proportion of mild, uncomplicated cases, but recurrence within a year is common. Mainly used as a bridge, or when surgery must be deferred.
For an established appendicular abscess: drain and treat the infection first, then remove the appendix electively after six to eight weeks when tissues are no longer inflamed.
Preparing for treatment
- Most appendectomies are emergencies, so preparation is rapid — blood tests, imaging and anaesthetic assessment on arrival
- Nothing by mouth from the moment appendicitis is suspected
- Intravenous fluids and antibiotics are started before surgery
- Tell the team about blood thinners, diabetes medication and allergies
- For a planned interval appendectomy, routine pre-operative fasting and workup apply
The procedure, step by step
- Anaesthesia and antibioticsGeneral anaesthesia with a dose of intravenous antibiotic given before the first incision.
- Port placementA camera port at the navel and two 5 mm working ports, positioned to leave barely visible scars.
- InspectionThe appendix is located and the rest of the abdomen — bowel, ovaries and tubes in women — is inspected to confirm the diagnosis.
- MobilisationThe appendix is freed from any adhesions and its blood supply, the mesoappendix, is sealed and divided.
- Division of the baseThe base is secured with an endoloop, clips or a stapler, and the appendix divided flush with the caecum.
- Retrieval and lavageThe appendix is removed inside a retrieval bag to avoid contaminating the port site, and any pus is washed out with warm saline.
- ClosureA drain is placed only if there was significant contamination. Ports are closed with absorbable sutures.
Recovery timeline
- Day 0Awake within minutes. Sips of water after a few hours; walking the same evening if the appendix was not perforated.
- Day 1Light diet, intravenous antibiotics continued, most uncomplicated cases discharged in the evening or the next morning.
- Days 2 – 5Oral antibiotics completed, mild port-site soreness, gradually increasing activity at home.
- Week 1Wound review, sutures generally absorbable. Return to school or desk work for most patients.
- Weeks 2 – 3Return to gym, sport and heavy lifting once cleared.
- If perforatedExpect three to five days in hospital, a longer antibiotic course and a recovery closer to four weeks.
Benefits of this approach
- Three tiny incisions rather than a visible right lower abdominal scar
- Much lower rate of wound infection, which matters greatly in an infected field
- Less pain and earlier walking
- Discharge within a day for uncomplicated cases
- The whole abdomen can be inspected — particularly valuable in young women
- Better washout of infection than is possible through a small open incision
- Lower long-term risk of adhesions and incisional hernia
Risks & possible complications
Every operation carries risk, and you should hear about it before you consent rather than afterwards. These are discussed individually at consultation in the context of your own health.
- Wound or port-site infection
- A residual collection or pelvic abscess after perforated appendicitis
- Ileus — the bowel taking a few days to restart, more likely after perforation
- Conversion to open surgery if the anatomy is unsafe
- Rarely, a leak from the appendix stump
- Standard general anaesthetic risks
What affects the cost
- Emergency presentation versus planned interval surgery
- Whether the appendix was simple, perforated or associated with an abscess
- Length of hospital stay and duration of intravenous antibiotics
- Imaging performed — ultrasound or CT
- Room category, anaesthesia and consumables such as staplers or endoloops
- Fully covered by health insurance as an emergency admission in nearly all policies