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Weight Loss Surgery

Bariatric
Surgery

A life-changing decision. Dr Cha offers a full range of bariatric procedures — from minimally invasive surgery to the latest non-surgical options — tailored to your body, lifestyle, and goals.

20+
Years of Surgical
Experience

What Is Bariatric Surgery?

More than weight loss —
a healthier life

Bariatric surgery refers to a group of procedures that help people with obesity lose weight by making changes to the digestive system. It works by reducing the size of the stomach, limiting food intake, and in some cases altering how nutrients are absorbed.

Beyond weight loss, bariatric surgery has been shown to significantly improve or resolve obesity-related conditions such as Type 2 diabetes, high blood pressure, sleep apnoea, and joint pain — often within weeks of surgery.

Dr Cha takes a personalised approach, assessing each patient's health profile, BMI, and lifestyle before recommending the most suitable procedure.

Bariatric Surgery
Now Available

GLP-1 Agonist
Weight Loss Injections

GLP-1 receptor agonists (such as semaglutide) are a breakthrough class of medications that suppress appetite and support significant weight loss. Dr Cha prescribes these as part of a comprehensive weight management plan.

As a surgeon with deep expertise in both medical and surgical weight loss, Dr Cha is uniquely positioned to guide patients on when medication is appropriate — and when surgery offers a better long-term outcome.

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Bridge Before Surgery

GLP-1 agonists can be used to reduce weight prior to surgery, lowering surgical risk and improving outcomes — especially for patients with a very high BMI.

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Adjuvant After Surgery

For patients who experience weight regain or a plateau after bariatric surgery, GLP-1 medications can be prescribed as an adjuvant to support continued weight loss.

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Medically Supervised

All GLP-1 prescriptions are managed by Dr Cha with regular follow-up, monitoring for side effects, and adjustment based on your progress.

Our Procedures

Bariatric Procedures

Dr Cha offers a full spectrum of weight loss procedures, from surgical to non-surgical, to match every patient's unique situation.

Gastric Bypass
Surgical

Gastric Bypass

The Roux-en-Y gastric bypass is considered the gold standard of bariatric surgery. It reduces stomach size and reroutes the small intestine, resulting in significant and sustained weight loss. It is particularly effective for patients with Type 2 diabetes.

  • 60–80% excess weight loss
  • Highly effective for diabetes
  • Laparoscopic (keyhole)
  • 2–3 days hospital stay
Surgical

Sleeve Gastrectomy

About 75–80% of the stomach is removed, leaving a narrow sleeve-shaped tube. This limits food intake and reduces hunger hormones. It is one of the most commonly performed bariatric procedures worldwide due to its simplicity and effectiveness.

  • 50–70% excess weight loss
  • No intestinal rerouting
  • Laparoscopic (keyhole)
  • 2–3 days hospital stay
Sleeve Gastrectomy
Gastric Plication
Surgical

Gastric Plication

A reversible procedure where the stomach is folded inward and sutured to reduce its volume, without removing any stomach tissue. It is a good option for patients seeking a less invasive surgical approach with no permanent alterations.

  • 40–60% excess weight loss
  • No stomach removed
  • Reversible
  • Laparoscopic (keyhole)
Non-Surgical

Intragastric Balloon

A soft silicone balloon is placed inside the stomach via endoscopy and inflated with saline. It occupies space in the stomach, helping patients feel full faster and eat less. The balloon is removed after 6 months. Ideal for patients who are not yet ready for surgery.

  • 10–15% total body weight loss
  • No surgery required
  • Removed after 6 months
  • Day procedure
Intragastric Balloon
Endoscopic Sleeve Gastroplasty
Non-Surgical

Endoscopic Sleeve Gastroplasty (ESG) New

ESG is a minimally invasive, incision-free procedure performed entirely through an endoscope. Sutures are placed inside the stomach to reduce its size by up to 70%, mimicking the effect of a surgical sleeve — without any cuts or scars. Recovery is rapid and patients typically go home the same day.

  • 15–20% total body weight loss
  • No incisions or scars
  • Same-day discharge
  • Fully reversible

Am I Suitable?

Are you a candidate for bariatric surgery?

Bariatric surgery is recommended for patients who have struggled to lose weight through diet and exercise alone, and who meet certain medical criteria. Dr Cha will assess your full health profile during a consultation.

  • BMI of 37.5 or above (Asian criteria)
  • BMI of 32.5 or above with obesity-related conditions (e.g. Type 2 diabetes, hypertension, sleep apnoea)
  • Have tried and failed non-surgical weight loss methods
  • Committed to long-term lifestyle changes after surgery
  • No untreated psychiatric conditions that may affect outcomes
BMI Guide for Asians
Category BMI Range Recommendation
Normal 18.5 – 22.9 Lifestyle advice
Overweight 23 – 27.4 Diet & exercise
Obese I 27.5 – 32.4 Medical management
Obese II 32.5 – 37.4 Consider surgery*
Obese III 37.5 and above Surgery recommended

* With obesity-related conditions such as Type 2 diabetes or hypertension.

Ready to start your
weight loss journey?

Book a consultation with Dr Cha to find out which procedure is right for you.

Book an Appointment