If diet and exercise haven’t delivered lasting results, bariatric surgery may be the safe, medically proven path to sustainable weight loss and improved health. Our hospital’s bariatric surgery program combines board-certified surgeons, minimally invasive techniques, and lifelong support to help patients achieve long-term success.
Bariatric surgery, also known as weight loss surgery, refers to a group of surgical procedures designed to help individuals with severe obesity lose weight by changing how the stomach and digestive system process food. These procedures reduce stomach size, limit food intake, or alter nutrient absorption — helping patients achieve significant, lasting weight loss when other methods haven’t worked.
You may be a candidate for bariatric surgery if you have:
According to the American Society for Metabolic and Bariatric Surgery, weight-loss surgery is an effective treatment for obesity, providing long-term weight loss, improvement or remission of type 2 diabetes, improved quality of life, and longer life. Our surgical team evaluates each patient individually to determine the safest and most effective option.
Gastric Sleeve (Sleeve Gastrectomy)
Removes a portion of the stomach to create a smaller, sleeve-shaped stomach, reducing hunger and food intake.
Gastric Bypass (Roux-en-Y)
Creates a small stomach pouch and reroutes the small intestine, limiting food intake and reducing calorie absorption.
Adjustable Gastric Banding
Places an adjustable band around the upper stomach to restrict food intake.
Revisional Bariatric Surgery
For patients who need adjustments to a previous weight loss procedure.
Research published by the National Institute of Diabetes and Digestive and Kidney Diseases confirms that bariatric surgery can lead to significant weight loss and help improve many obesity-related health conditions.
Is bariatric surgery safe?
Yes. Modern bariatric procedures are minimally invasive and performed using advanced laparoscopic or robotic techniques, with safety profiles comparable to other common surgeries such as gallbladder removal.
How much weight can I expect to lose after weight loss surgery?
Most patients lose 50–70% of their excess body weight within 12–18 months, depending on the procedure and adherence to post-surgical lifestyle changes.
Is bariatric surgery covered by insurance?
Many insurance plans cover bariatric surgery when medical criteria are met. Our patient coordinators can help verify your specific benefits.
How long is the recovery after weight loss surgery?
Most patients return to normal activities within 2–4 weeks, with full recovery typically within 4–6 weeks.
What is the difference between gastric sleeve and gastric bypass?
Gastric sleeve reduces stomach size only, while gastric bypass both reduces stomach size and reroutes the intestines to limit calorie absorption. Your surgeon will help determine which option fits your health goals.
Take the first step toward lasting weight loss and better health. Our multidisciplinary team is here to guide you through every stage of your bariatric surgery journey — from evaluation to long-term follow-up care.
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Bariatric Surgery Malaysia is an informational platform providing educational content and care coordination for individuals exploring weight loss surgery with Dr Navin Mann at licensed private hospitals and medical centres in Malaysia.
Bariatric surgery is a weight-loss procedure that alters the digestive system to help patients with severe obesity lose weight by restricting food intake, reducing nutrient absorption, or both. Common types include gastric bypass, sleeve gastrectomy, and gastric banding. It’s typically recommended when diet and exercise haven’t achieved lasting results and obesity-related health risks are present.
Dr Navin Mann is a Consultant Bariatric, Metabolic & General Surgeon with expertise in minimally invasive (laparoscopic) surgical techniques.
His clinical focus includes:
He is actively involved in the surgical management of patients with obesity, metabolic disorders, gastrointestinal conditions, thyroid diseases, breast conditions, and other general surgical problems. Treatment recommendations are individualized based on comprehensive clinical assessment and patient-specific healthcare needs.
Surgical procedures are performed in licensed private hospitals and medical centres in Malaysia, where Dr Navin Mann holds credentialed operating privileges and provides specialist surgical care in accordance with established medical standards and best practices.




Bariatric surgery refers to a group of procedures that modify the stomach and/or intestines to help patients with severe obesity lose weight, by limiting how much food can be eaten, how many calories are absorbed, or both.
The main options are sleeve gastrectomy, gastric bypass, gastric banding, and duodenal switch. Your surgeon will recommend the best fit based on your weight, health history, and goals.
Generally, candidates have a BMI of 37.5 or higher, or 32.5+ with a related condition such as diabetes or high blood pressure, and have not achieved lasting results through diet or exercise alone.
When performed by an experienced surgical team using modern techniques, bariatric surgery carries a low complication rate. A pre-surgery evaluation identifies and manages your individual risk factors.
Preparation typically includes a medical evaluation, nutritional counseling, psychological assessment, and pre-surgery diet changes to reduce liver size and lower surgical risk. Your care team will guide you through each step.
Most patients lose 50–70% of their excess weight within 12–18 months. The exact amount depends on the procedure chosen, starting weight, and how closely post-surgery guidelines are followed.
Gastric bypass and duodenal switch can technically be reversed, though this is uncommon. Sleeve gastrectomy is permanent, as a portion of the stomach is removed during the procedure.
A typical hospital stay is 1–3 days, with a return to normal activities in 2–4 weeks. Most patients reach full recovery and adjust to their new diet within 6–8 weeks.
Yes. Long-term success depends on smaller portions, prioritizing protein, and taking prescribed vitamin and mineral supplements to avoid nutritional deficiencies.
Many patients experience significant improvement or remission of type 2 diabetes, high blood pressure, and sleep apnea after surgery, though outcomes vary by individual and condition severity.