Before hospital: follow your own team's instructions
Sleeve surgery day starts well before you reach the hospital. The team gives written fasting instructions: when to stop food, when to stop fluids, and which medicines to take in the morning and which to pause. Follow that sheet exactly, because fasting times in modern enhanced-recovery protocols can differ from what someone who had surgery years ago remembers. [2, 3]
Diabetes medicines, blood thinners, blood-pressure medicines and injections used for weight or diabetes need a clear discussion with the team before surgery; do not stop or change any of them yourself. If you smoke, guidance advises stopping well before surgery, because smoking slows wound healing and raises the risk of clots and chest problems. [2, 3, 10]
If you have sleep apnoea and use a CPAP machine, bring it to hospital, because the team may ask you to use it after surgery. Pack a small bag with a medicine list including doses, your reports and results, loose clothing, and the number of the person who will be with you on discharge day. [3, 10]
Prepare home beforehand too: the fluids the team listed for the first stage, a resting place near the bathroom, and someone to help for the first few days. If you are still in the preparation stage, read preparing for bariatric surgery to see the tests and visits that come before this day. [2, 10]
Safety checks before anaesthesia
When you arrive, the team will ask the same questions more than once: your name, the operation, allergies, your last food and drink, and the medicines you took that morning. The repetition is deliberate and is part of the surgical safety checklist; it does not mean anyone forgot or that something is wrong. [2, 3]
The anaesthetist will review your breathing and airway, sleep apnoea, any previous difficult anaesthetic, and any severe nausea after an earlier operation. These details shape the choice of anaesthetic and pain medicines and the plan to prevent nausea and vomiting afterwards. Mention everything, even if it seems minor. [3]
You will also hear about clot prevention. Bariatric surgery carries a risk of clots in the legs or lungs, so the team may use compression stockings or leg-compression devices, and blood-thinning injections according to its assessment of your case, alongside encouraging early movement. Do not compare your plan with someone else's; the type and duration of prevention are set by assessment. [2, 3, 12]
If a new symptom appears before surgery, such as fever, cough, chest pain or a possible pregnancy, say so immediately. Sometimes postponing is the safest choice, and that is a safety decision, not a loss. [2, 3]
What happens during sleeve surgery?
In a sleeve gastrectomy, the surgeon removes a large part of the stomach and leaves a narrow stomach roughly the size of a banana, without rerouting the intestines. The operation is usually laparoscopic under general anaesthesia, through small abdominal incisions. The smaller stomach limits how much you can eat and makes you feel full after small amounts. [5, 10, 12]
The removed part is closed with a line of surgical staples, and the surgeon checks that staple line during the operation using methods that vary between teams. The main early complications explained at consent are bleeding, leakage from the staple line, clots, infection and anaesthetic problems. Knowing these names is not meant to frighten you; it explains why certain signs after surgery need prompt contact. [1, 10, 12]
Some issues can appear later, such as heartburn or reflux, and shortages of certain vitamins and minerals if follow-up and supplements are irregular. That is why a sleeve does not end when you leave the operating room; it begins a long surgical and nutritional follow-up. [1, 7, 10]
The surgeon may also adjust part of the plan during the operation if what is found inside the abdomen calls for it on safety grounds. Ask about those possibilities beforehand, ask afterwards exactly what was done, and keep a copy of the operation report. [5, 12]
Waking up and managing pain and nausea
You will wake in the recovery room, where the team monitors breathing, oxygen level, pulse, blood pressure, pain and nausea. A dry throat or grogginess from the anaesthetic is common and usually settles within hours. [3, 10]
Pain is treated with a plan that combines more than one type of pain medicine. The aim is to let you breathe deeply, move and cough comfortably, not to feel nothing at all. Much laparoscopic pain is at the incision sites, and shoulder pain can occur from the gas used to inflate the abdomen during surgery. Tell the nurses if pain stops you moving or taking a deep breath rather than enduring it quietly. [3, 10]
Nausea and vomiting after a sleeve are unpleasant and also strain the new stomach, so the team gives anti-sickness medicines early. If nausea returns or worsens, report it straight away rather than waiting. [3]
Medicines that reduce stomach acid may start in hospital and continue after discharge according to the surgeon's instructions, alongside pain medicine as tablets or liquid. Do not stop or increase them without asking. [10]
If you have sleep apnoea, the team may ask you to use CPAP while sleeping and to keep your head slightly raised. These steps protect breathing, particularly while you are taking pain medicines. [3]
Movement and drinking before discharge
Early movement is one of the most important recovery steps after bariatric surgery. In enhanced-recovery protocols, the team encourages you to sit, stand and walk with help on the day of surgery or the next day, depending on your condition. Walking lowers the risk of clots and chest problems and helps the bowel start working again. [3, 10]
Deep-breathing exercises and gentle coughing help the lungs open after anaesthesia, and the nurses may give you a small breathing device to practise with. Support your abdomen with a pillow if coughing hurts the incisions. [3]
Drinking starts with small sips of clear fluids according to the team's instructions. MedlinePlus notes that people can usually drink clear liquids the day after surgery and often go home about two days after surgery, but your team sets the actual timetable. Drink slowly and avoid large amounts at once, because the new stomach is small. [10, 13]
Before discharge, the team checks that vital signs are stable, pain is controlled with tablets or liquid medicine, you are drinking enough without vomiting, and you can move independently. Make sure you leave with a list of new medicines, a written eating plan, wound instructions, a follow-up appointment and a number to call if something changes. [3, 6, 10]
Step-by-step recovery at home
At home, walk several times a day and increase gradually rather than staying in bed for long periods. Heavy lifting and strenuous exercise wait for the surgeon's permission. Driving, returning to work, bathing and wound care all have written instructions; follow them rather than comparing yourself with someone else. [6, 10]
Eating moves through stages: liquids, then puréed food, then soft food, then regular food, and the surgeon and dietitian decide when you move from one stage to the next. Eat slowly, chew well, stop as soon as you feel full, separate drinking from eating as instructed, and make protein a priority at every meal. [2, 10, 13]
Fluids matter greatly in the first weeks, because a small stomach makes it harder to drink enough and dehydration can happen. Keep a bottle nearby and sip throughout the day. If you pass less urine, it becomes dark, or you feel dizzy, contact the team. [2, 10, 13]
The supplements your team specifies, such as a multivitamin and others, start according to protocol and usually continue for life with regular blood tests. Tiredness, mood changes and temporary hair thinning can occur with rapid weight loss; raise them at follow-up rather than starting a supplement yourself. The details are in nutrition and follow-up after sleeve gastrectomy. [7, 8, 9, 13]
Warning signs and follow-up
Go to emergency care or contact the team immediately for chest pain, breathlessness, a persistently fast pulse, fever or shivering, abdominal pain that increases rather than settles, repeated vomiting or being unable to keep fluids down, pain or swelling in the calf, blood in vomit or black stools, or redness and discharge from a wound. These signs can mark the start of a complication such as a leak, clot or bleeding, and should not wait for the routine follow-up. [3, 10, 12]
Planned follow-up after a sleeve is not optional. Early visits review wounds, eating, fluids and medicines; follow-up then continues with the surgeon, the dietitian and regular vitamin and mineral tests. If you miss an appointment, rebook rather than waiting for a symptom to appear. Read why bariatric follow-up is lifelong. [1, 6, 9]
A sleeve is a tool that helps, but its long-term result is linked to eating, activity, sleep, follow-up and psychological support as well. If your mood drops or your relationship with food becomes worrying after surgery, raise it at follow-up, because it is part of care just like the wound. [4, 6]
If you are still weighing the decision, return to sleeve gastrectomy before deciding. If you need non-urgent follow-up after surgery or want to review your eating plan and tests, you can book a clinic visit at La Rose. Emergencies should not wait for a booking. [1, 6]
