Questions to Ask Before Bariatric Surgery
For anyone weighing up a gastric sleeve, a bypass or another bariatric operation, and for the family who will be at home with them afterwards. These 56 questions to ask before having weight loss surgery run in the order the decision does: whether surgery is right for you and which operation, the surgeon and centre, the risks, getting approved and ready, recovery and eating, and the years that follow. Most are for the surgeon; the eating ones are better put to the dietitian, and the approval ones to whoever handles your insurer or waiting list.
The questions
Each question, and why to ask it
Is it for me
Do I qualify for weight loss surgery, and what would it do for me that medication or a supervised programme would not?
Why ask it
The criteria usually turn on BMI and on conditions such as type 2 diabetes or sleep apnoea, but they differ between countries, insurers and health services, so ask how it works where you are. The second half is the real question: have the surgeon set surgery beside the alternatives for someone with your history, not for patients in general.
Which procedure are you recommending for me, and what in my history led you to it?
Why ask it
The recommendation should rest on specifics: your BMI, diabetes, reflux, previous abdominal surgery, medications you cannot stop. If the answer is mainly about what the centre does most often, that is worth knowing, and it is a reason to seek a second opinion rather than an objection to the surgeon.
How would a sleeve gastrectomy and a gastric bypass differ for someone with my medical history, including reflux?
Why ask it
Reflux is one of the places where the two operations part company: a sleeve can make it worse, and many surgeons lean towards a bypass when it is already troublesome, though how much weight they give it varies. Asking for the comparison rather than the recommendation lets you hear the reasoning instead of the conclusion.
Can a gastric sleeve be reversed, and what are my options if it does not suit me?
Why ask it
A sleeve takes away most of the stomach for good, so there is nothing to put back. Ask the surgeon to say plainly what could be done later instead, usually a conversion to a different operation, and how often their own sleeve patients have needed one.
What weight loss is typical at one, two and five years after this operation, and how much do people regain?
Why ask it
Weight tends to come off fastest in the first year or so and some of it commonly returns, so a single headline number tells you little. Have the centre give the range it sees rather than its best case, and the share of its patients it still follows at five years, because that share decides how much any figure is worth.
Is there an operation other than a sleeve or a bypass that you would consider for me?
Why ask it
Depending on the country and the centre, the list can include a one-anastomosis or 'mini' bypass, a gastric band, a balloon placed by endoscope, or a two-stage plan for people at a very high weight. If the surgeon offers only one or two operations, it helps to know whether that is a judgement about you or simply what this hospital does.
Which of my health problems is this likely to improve, and which should I not expect it to fix?
Why ask it
Go through your own list one by one: diabetes, blood pressure, sleep apnoea, joint pain, fertility, mood. Hearing 'likely', 'possible' and 'probably not' against each item gives you a truer picture than a general promise of better health, and it tells you what to measure afterwards.
What happens to my health if I wait a year, or decide against surgery altogether?
Why ask it
Not operating is a choice with its own risks and its own advantages, and a good consultation covers it. Ask what the team would offer you in the meantime, and whether waiting would close any doors, such as an approval that expires.
I am taking, or have tried, a weight loss injection: how does that change the plan?
Why ask it
Bring the name, the dose and what happened to your weight on it. Ask whether it has to be paused before the anaesthetic, whether the programme uses these medicines alongside surgery, and whether your response to one says anything about which operation suits you. Practice here is still changing, so expect an answer specific to this team.
What would make you advise me not to have this operation?
Why ask it
A considered answer will exist: an untreated eating disorder, current alcohol or drug dependence, unmanaged depression, an inability to attend follow-up, or another medical problem that should be addressed first. A surgeon who cannot name anything is not describing a careful assessment process.
Surgeon and centre
How many of these operations do you do each year, and what are your leak and readmission rates?
Why ask it
Whether these figures are published depends on the country: some have a national registry that reports by hospital or by surgeon, and elsewhere you have only what the surgeon tells you. Listen for actual numbers, for how they sit beside the registry or national figure, and for how the surgeon takes being asked.
Is this hospital accredited for bariatric surgery, and by which body?
Why ask it
Accreditation schemes are national, so the name and what it demands differ from one country to the next, and some places have none. What sits behind the badge can be asked about directly: intensive care on site, equipment rated for your weight, and a surgeon on call who does these operations.
If something goes wrong at two in the morning, who do I ring and where do I go?
Why ask it
Find out whether the number reaches the bariatric team or a general switchboard, and whether you would come back to this hospital or go to your nearest emergency department. If it is the local one, have the team tell you what to say on arrival, since staff there may not know the anatomy of your operation.
Will you be the person operating, and who else will be in the theatre?
Why ask it
In a teaching hospital a trainee or fellow may do part of the operation under supervision, which is normal but better heard now than read on a consent form. Ask who the anaesthetist will be too, and whether they regularly anaesthetise bariatric patients.
Is this done by keyhole surgery, and what would make you switch to an open operation?
Why ask it
Most teams plan a laparoscopic or robotic approach, and earlier abdominal surgery, scar tissue or a large liver are the usual reasons the plan changes. An open operation generally means a longer stay and more time off work, so have the surgeon put rough numbers on both versions.
Who is on the team besides you, and how many times will I see the dietitian and the psychologist?
Why ask it
A programme can list these people on its website and still offer one appointment with each. What counts is the number of visits before and after surgery, whether they are in person, and whether you can book an extra one in a hard month.
Can I speak to patients who had this operation here two or more years ago?
Why ask it
People a few weeks out are still in the fast-loss stage, while people a few years out can tell you about restaurants, regain and the vitamins. A centre cannot hand out names, so the usual route is a support group it runs, in person or online; if there is none, that is worth a follow-up question about its aftercare.
If I travel a long way or go abroad for surgery, who looks after me once I am home?
Why ask it
The operation takes a few hours and the follow-up takes years, so settle this before paying a deposit. Ask who would see you for a complication in week two, who orders the blood tests, and whether your own doctor has agreed to take that on. How your home health service or insurer treats problems after surgery done elsewhere varies, so check that as well.
Risks
What are the risks in the first thirty days, and which symptoms should make me call you straight away?
Why ask it
Take two lists home. One is what the team watches for, such as a leak, bleeding, a blood clot, a blockage or infection. The other is the symptoms that mean ring today: teams commonly name a racing heart, worsening pain, breathlessness and not keeping fluids down, but get theirs in writing with the number beside it.
What is the chance of dying from this operation, for someone like me?
Why ask it
It is easier to think this than to say it, and a surgeon will have answered it many times. A general figure for the operation is less use than the surgeon's estimate for you, set beside what your current health problems are likely to do if nothing changes.
What makes my operation riskier than average, and can any of it be reduced before the day?
Why ask it
Averages hide a lot. Weight, age and earlier surgery are fixed for now, but blood sugar control, smoking, fitness and an untreated sleep problem are things a few months of preparation can often shift, and the team should say which of those apply to you.
What will you do to prevent blood clots, and will I be injecting myself at home?
Why ask it
Clot prevention often carries on after discharge, with stockings, early walking or a course of blood-thinning injections. If injections are part of it, ask to be shown how before you leave the ward, and mention any clot that you or a close relative has had.
How would a leak from the staple line show itself, and how is it treated?
Why ask it
Anyone reading up on gastric sleeve surgery meets this word early, and the details are more use than the word. Three things to come away with: how soon after the operation it tends to show, what you would feel at home, and whether treatment means a drain, a stent, a return to theatre or weeks in hospital.
I have sleep apnoea, or might have: what does that change about the anaesthetic and the first night?
Why ask it
Untreated sleep apnoea matters to the anaesthetist, which is why many programmes test for it first. Ask whether to bring your own CPAP machine, where you will be monitored overnight, and how pain relief is chosen for someone whose breathing needs watching.
If I get severe reflux after a sleeve, what can be done about it?
Why ask it
Have the surgeon walk through the steps in order: medication first, then tests, and only then the question of converting to a bypass. If you already take something for heartburn, say so at this point, because it changes how much this answer should count in your choice.
What is dumping syndrome, and how likely is it with the procedure you're recommending?
Why ask it
The name covers cramping, nausea, sweating, palpitations and diarrhoea when food reaches the intestine too quickly, and it is generally more a feature of bypass than of a sleeve. Sugary food and drink are the usual suspects, so get the dietitian's list of triggers and what to do if an episode catches you out.
What side effects of losing weight this quickly should I expect, such as gallstones and hair loss?
Why ask it
Both come from the speed of the weight loss rather than from the operation itself. Some programmes prescribe a medicine to lower the chance of gallstones and others wait and see, and hair thinning is usually described as temporary, so the thing to pin down is what this team does about each.
Before the day
What do I need to complete before this is approved and scheduled?
Why ask it
Requirements often include a supervised diet over several months, psychological assessment, stopping smoking, an endoscopy, sleep study, or a target amount of pre-operative weight loss. Get the list in writing with dates, since one missing item can delay a date by months.
What will this cost me in total, including the pre-op programme, supplements and follow-up?
Why ask it
The operation is one line among several: pre-operative appointments, the dietitian, monthly supplements and repeat blood tests all sit beside it. The answer that matters most is who pays if you need a revision or treatment for a complication, which depends on your insurer, health service or self-pay contract, so get it in writing.
Who deals with my insurer or the waiting list, and what most often holds up an approval?
Why ask it
Some centres have a coordinator who submits everything, and others leave the forms to you. Ask what the usual sticking points are, for example a gap in documented weigh-ins or a missing letter, and how approval and funding work under your insurer or health service, since those rules are local.
What is the diet in the weeks before surgery, and what happens if I do not stick to it?
Why ask it
Many surgeons ask for a strict low-calorie diet beforehand to shrink the liver and give themselves room to work. The details differ by team: how long it lasts, shakes or food, how it fits with diabetes medication, and whether a liver that is still large on the day means the operation is called off.
Do I need an endoscopy or other tests first, and what result would change the plan?
Why ask it
A camera test can turn up a hiatal hernia, an ulcer or inflammation that bears on whether a sleeve is still the right choice. Programmes differ on which tests are required and which are optional, so get that list, and find out who phones you with the results.
Do I have to stop smoking, vaping and nicotine replacement, and do you test for it?
Why ask it
Rules range from stopping cigarettes a few weeks ahead to a nicotine test that cancels the operation if it comes back positive. Pin down exactly what counts, for how long before and after, and what help with stopping the programme can arrange.
Which of my medicines and supplements do I stop before the operation, and on which day?
Why ask it
Blood thinners, diabetes tablets, weight loss injections, hormone treatment and some herbal products can each have their own stop date. One written list with a date beside each is what you want, plus the name of someone to ring if a dose gets taken by mistake.
What could get my operation postponed at the last minute?
Why ask it
A chest infection, a high blood sugar reading, weight gained on the pre-operative diet or a missed test can all do it. Knowing the list lets you protect the date. Get the number to ring if you fall ill that week, so you are not turned away after fasting.
What should I buy and set up at home before I go in?
Why ask it
The dietitian will have a list: protein drinks, sugar-free fluids, small containers, a blender, chewable or liquid vitamins. Try a few brands of shake during the wait and buy small amounts, since some people find that flavours they liked taste different afterwards.
Recovery and eating
How many nights will I spend in hospital, and what has to happen before I am sent home?
Why ask it
The discharge checklist tells you what the ward is watching for: drinking enough, pain controlled without a drip, walking, sometimes a swallow test. Knowing what would keep you in longer stops an extra night feeling like a sign that something has gone badly.
What will the pain be like in the first week, and what am I given for it?
Why ask it
Expect to hear about the wounds and about shoulder or chest discomfort from the gas used in keyhole surgery. Get the names and forms of the medicines, since tablets may need crushing or swapping for liquids at first, and ask at what point pain stops being ordinary and becomes a reason to phone.
How will my current medications change, particularly for diabetes and blood pressure?
Why ask it
Doses can need cutting soon after surgery, sometimes within days for insulin and blood pressure tablets, and slow-release forms may be swapped for something else. Because that moves fast, the thing to settle beforehand is who makes the changes: the surgical team, your own doctor or a diabetes specialist.
What will I be able to eat at one week, one month and six months?
Why ask it
The stages run from liquids to pureed food to solids, and they are stricter than the phrase 'soft diet' suggests, with portions that stay far smaller than before. Having the written plan in advance shows you whether the first weeks are workable alongside your job and household.
How much fluid and protein should I get through each day, and what if I cannot manage it?
Why ask it
Sipping enough through a newly small stomach is harder than it sounds, and dehydration is one of the things that sends people back to the ward. You want the daily targets as numbers, the tricks other patients use to reach them, and the point at which to ring instead of trying again tomorrow.
How soon can I drive, lift and go back to a job like mine?
Why ask it
Describe the job: a desk, a ward, a warehouse and a long commute get different answers. Ask separately about driving, which can depend on your pain medicine and on your motor insurer's rules, and about lifting children or shopping.
What exercise do you want me doing, and from which week?
Why ask it
Walking tends to start within hours of the operation, and many teams bring in strength work later to hold on to muscle while the weight comes off. Swimming waits for the wounds and weights for the surgeon's say-so, so get a week number for each, and find out whether the programme has a physiotherapist or exercise specialist.
What do I do if food feels stuck, or I keep being sick?
Why ask it
Eating too fast, too much or too dry is the everyday explanation, and the dietitian can coach you out of it. Repeated vomiting is different: ask how many hours of it should prompt a call, because it can point to a narrowing and it drains fluids and vitamins quickly.
Is it normal to regret the operation in the first few weeks, and who do I talk to if I do?
Why ask it
The early weeks combine being sore, living on liquids and not being able to turn to food for comfort, and a low patch then is something bariatric teams hear about often. Hearing that in advance, and having a named person to ring, makes it less frightening if it happens to you.
What should the people I live with know about how I will be eating?
Why ask it
Family meals, cooking smells and well-meant offers of 'just a little' are harder than the diet sheet suggests. Ask whether your partner or a relative can sit in on a dietitian session, and how other patients manage eating with children, at restaurants and at celebrations.
Long term
Which vitamins and minerals will I need for life, at what doses, and how will my levels be monitored?
Why ask it
Low B12, iron, calcium, vitamin D and thiamine are the ones teams watch for after these operations, and some can do lasting harm if they go unnoticed. The regimen differs between a sleeve and a bypass and between programmes, so leave with the names and doses written down and the schedule of blood tests that goes with them.
Can I take ibuprofen or similar anti-inflammatory medicines afterwards?
Why ask it
The usual advice after a gastric bypass is to avoid them long term because of ulcers at the join, and teams differ on how strict they are after a sleeve. If you rely on them for arthritis, back pain or migraine, raise it now, since it can bear on which operation suits you.
What changes about alcohol after this operation?
Why ask it
Many teams warn that alcohol can hit faster and harder after these operations, bypass especially, and that some patients find their drinking creeps up in the years afterwards. Have the surgeon say what they advise and for how long, and be as honest with yourself about your drinking as you are with them.
If I might want to become pregnant, how long should I wait, and what changes about the pregnancy?
Why ask it
Programmes generally advise waiting through the period of rapid weight loss, commonly twelve to eighteen months, and note that fertility can increase soon after surgery. That makes contraception during that window part of the conversation, along with the extra monitoring of nutrition in a later pregnancy.
I eat when I am stressed or low: what help is there for that, before and after surgery?
Why ask it
Surgery changes the stomach and not the reasons people eat. Saying this out loud at the assessment is what the psychologist is there for, and the answer to listen for is what the programme does if comfort eating, bingeing or low mood turns up six months after the operation.
What does follow-up look like at year two and year five, and who is responsible for it?
Why ask it
The first year is usually tightly scheduled and the later ones are not, which is when vitamins lapse and regain goes unnoticed. Find out how appointments are booked that far out, whether your own doctor takes over, and who is watching the blood tests once the programme has discharged you.
If my weight starts creeping back in year three, what can this programme offer?
Why ask it
The answer should name people: the dietitian, a psychologist, a doctor who prescribes weight loss medication, or the surgeon for a revision assessment. The practical detail is whether you can come back on your own initiative or need a fresh referral, which depends on the health system.
Can a sleeve stretch over time, and which habits make that more likely?
Why ask it
It is a worry patients pass between themselves, and surgeons do not always raise it. Have the surgeon explain what does and does not change in the stomach over the years and what the team has seen in people who regained; the dietitian can say which eating patterns to watch for.
What can be done about loose skin, and would removing it ever be paid for?
Why ask it
How much there is depends on age, how much weight comes off and how long it was carried, and nobody can promise in advance. Body contouring is treated as cosmetic in many places and funded only under set criteria in others, so find out how it works under your insurer or health service and how long after surgery anyone would consider it.
What should I tell other doctors, dentists and emergency staff about my operation in future?
Why ask it
Some medicines, tubes and scans are handled differently in someone whose anatomy has been altered, and a doctor meeting you for the first time will not know unless you say. Ask whether the centre issues a card or letter naming the operation, and keep a photo of it on your phone.
Preparing for the consultation and the year after
Practical guidance for the conversation itself
Take someone with you, and take notes
These appointments cover a great deal quickly, and it is hard to hold on to much of it afterwards. Bring the person who will be cooking, driving and noticing if you are unwell in the first weeks. Ask whether you can record the conversation, or write down the answers as they are given and read them back. Ask for the written diet plan, the supplement list and the follow-up schedule before you leave, since those three documents answer most of the questions that come up later at home.
Numbers and details worth writing down
- The exact name of the procedure planned, and whether anything else is being repaired at the same time, such as a hernia.
- The surgeon's annual volume for this operation, and the centre's leak and readmission figures.
- Expected nights in hospital, and how long before returning to work in your particular job.
- The supplement regimen with doses, and the dates of the blood tests the programme schedules in the first year.
- Which of your current medications change, and who is making that change.
- The out-of-hours contact number, and which hospital to attend if you become unwell.
- Total expected cost to you, including supplements and follow-up over the first two years.
Use the waiting period rather than enduring it
- The supervised programme before surgery is also a rehearsal. Practise the protein targets, small portions, and not drinking with meals now.
- Most programmes require you to stop smoking, and some test for nicotine; ask for help with it rather than managing alone.
- Ask the dietitian what to buy before the operation, since shopping in the first fortnight is difficult.
- Sort out time off work, help at home, and childcare in advance, using the recovery timeline you were given rather than an optimistic guess.
- Attend a support group before surgery if one is available. People two years out can describe ordinary life after a sleeve or bypass in a way the clinic leaflets do not.
Where things tend to go wrong later
- Supplements stopped once someone feels well. Deficiencies can build without symptoms, which is why the blood tests carry on after the weight has settled.
- Follow-up appointments quietly lapsing, so that regain or a deficiency is found late.
- Grazing through the day, which is easier than eating meals and is one of the patterns dietitians look for when weight starts to return.
- Alcohol increasing after surgery, often without the person noticing the change in how it affects them.
- Pregnancy during the period of rapid weight loss, before nutrition has stabilised.
- Assuming any abdominal pain months or years later is ordinary. Obstructions and internal hernias can present late and need assessment by a team that knows your anatomy.
On second opinions
Unless there is a pressing medical reason to proceed quickly, there is usually time to see another surgeon, ideally at a high volume accredited centre. A second opinion is most useful when you have a specific question: whether a different procedure suits your reflux or your medications, or whether a revision is a reasonable option. Bring your imaging, your endoscopy report and your list of medications so the second team can comment on your case rather than on generalities.