Before your surgery
After your preoperative tests, your surgeon reviews the final details of the procedure with you. Bariatric surgeries such as gastric sleeve and gastric bypass are usually performed laparoscopically, through small incisions rather than one large cut.
Pre-surgery preparation
- Complete your preoperative tests. Preoperative tests such as blood work, an endoscopy and an ECG help your surgeon confirm that your body is ready for surgery.
- Stop smoking and drinking. Stop smoking and drinking alcohol at least three weeks before surgery. You will also need to avoid alcohol and carbonated drinks for around a year after the operation.
- Prepare mentally for the change. Bariatric surgery brings lasting lifestyle changes. Discuss your goals with your surgeon, and consider speaking with a therapist for extra support.
- Review your medicines with your prescriber. Tell your surgeon about every medicine, supplement and herbal product you take, including blood-thinning medicines such as aspirin, and about any drug allergies. Do not stop or change a prescribed medicine unless the healthcare professional who prescribed it tells you to. If something has to be paused before surgery, your surgeon and your prescriber will tell you when and for how long.
- Skip fake tan and nail products. Avoid fake tan in the 7 days before surgery, and make sure your nails are clean and clear, with no polish or fake nails.
During your surgery
Gastric sleeve and gastric bypass are performed under general anaesthesia and usually take between 45 minutes and 2 hours. A gastric balloon procedure is different: it is done via endoscopy with mild sedation, takes around 20 minutes, and is followed by a few hours of observation.
What to bring and how to prepare on the day
- Bring a nightdress, slippers and something to keep you occupied, such as books or a laptop.
- Avoid wearing jewellery, fake eyelashes, hair extensions, moisturiser or deodorant.
- Wear comfortable clothes that button or zip at the front, and avoid pantyhose or girdles.
- If you wear contact lenses, glasses or dentures, bring their cases and remove them before surgery.
- If you feel nauseous after anaesthesia, ask your nurses for anti-sickness medication.
After your surgery
Recovery from bariatric surgery involves a hospital stay for monitoring. Your surgeon gives you detailed post-op care instructions covering activity, diet, wound care and medication.
Post-op care
- Be aware of possible risks such as bleeding, infection, blood clots or leakage, and follow your surgeon's advice closely.
- Attend your follow-up appointments so your progress can be monitored and your plan adjusted.
- Remember that bariatric surgery is not a quick fix; long-term success depends on nutrition, regular exercise and stress management.
- Use antibacterial baby wipes to keep clean, as you will not be able to shower for several days.
- Protect your scars with sunscreen (SPF 30 or higher) for at least a year to avoid discolouration.
- Stay hydrated and take any recommended vitamin and mineral supplements to prevent deficiencies.
- Follow the specific nutrition guidelines given by your surgeon and nutritionist.
Additional considerations
- Stress management supports both your health and your weight loss. Techniques such as meditation, yoga or deep breathing can help.
- It is generally recommended to wait 12 to 18 months after bariatric surgery before trying to become pregnant.
- Be patient with your body, and contact your healthcare team if you have any concerns.
Bariatric surgery is a journey. With the right preparation and support, you give yourself the best chance of long-term weight loss and improved health.