What is Sleeve Gastrectomy? Procedure, Benefits & Risks

By Dr. Tagore Grandhi · MBBS, MS, FRCS (UK), DLS (France) 19 May 2026 5 min read

Globally, obesity is one of the biggest health concerns. Despite strict diets and exercise, many people struggle with excess weight. Sleeve gastrectomy offers effective, lasting results where lifestyle changes fall short. This advanced bariatric surgery improves health and quality of life by helping patients safely lose weight. Experienced bariatric surgeons at Lux Hospitals offer individualised […]

Experienced bariatric surgeons at Lux Hospitals offer individualised obesity treatment programs designed to help patients achieve long-term success. Patients can make informed decisions about their health journey by understanding the surgery, its advantages, and associated risks.

Take the first step toward lasting weight loss today.Take the first step toward lasting weight loss today.

What is Sleeve Gastrectomy?

Sleeve Gastrectomy is a minimally invasive weight-loss surgery in which nearly 75–80% of the stomach is removed. The remaining portion of the stomach becomes a narrow tube or “sleeve.” As stomach size decreases, patients feel full more quickly and consume less food.

Additionally, this surgery helps patients naturally regulate their appetite by lowering the production of hunger hormones. One of the most popular bariatric procedures is the sleeve gastrectomy because it provides efficient, long-lasting weight loss.

People who may benefit from Sleeve Gastrectomy include:

Individuals with severe obesity
Patients with a BMI above 35
People suffering from obesity-related diseases
Patients struggling with diabetes, hypertension, or sleep apnea.
Individuals unable to lose weight through diet and exercise alone

Common obesity-related conditions improved after surgery:

Type 2 diabetes
High blood pressure
Joint pain
Fatty liver disease
Sleep apnea
Heart disease risks

Take control of your weight and health today.Take control of your weight and health today.

Sleeve Gastrectomy Procedure Explained

The Sleeve Gastrectomy procedure is usually performed laparoscopically using small incisions. This minimally invasive approach helps reduce pain, blood loss, and recovery time.

Step-by-step procedure:

1. Pre-Surgical Evaluation

Before surgery, doctors conduct:

Blood tests
BMI assessment
Nutritional evaluation
Psychological counseling
Imaging studies, if required

Patients also receive dietary guidance before the surgery.

2. Anaesthesia Administration

The patient is given general anaesthesia to ensure comfort throughout the procedure.

3. Removal of the Stomach Portion

The surgeon removes nearly 75–80% of the stomach and reshapes the remaining portion into a sleeve-like structure.

4. Stapling the Remaining Stomach

The remaining stomach is sealed using surgical staples to create a smaller stomach pouch.

5. Recovery and Monitoring

Patients are monitored carefully after surgery and are usually discharged within 2–3 days.

Duration of Surgery

Usually takes 1–2 hours.
Minimally invasive technique
Faster recovery compared to open surgery

Recovery Timeline

Liquid diet for the first few weeks
Gradual return to solid foods
Light activities within 1–2 weeks
Full recovery within 4–6 weeks

At Lux Hospitals, advanced surgical technology and experienced bariatric specialists ensure safe and effective Sleeve Gastrectomy procedures with personalised post-operative care.

Experience advanced laparoscopic bariatric surgery at Lux Experience advanced laparoscopic bariatric surgery at Lux

Benefits of Sleeve Gastrectomy

One of the biggest advantages of Sleeve Gastrectomy is its ability to provide long-term weight loss while improving obesity-related health conditions.

Major Benefits of Sleeve Gastrectomy

1. Significant Weight Loss

Most patients lose 50–70% of excess body weight within the first 12–18 months after surgery.

2. Reduced Hunger

Because the hunger hormone ghrelin decreases after Sleeve Gastrectomy, patients feel less hungry and can maintain healthier eating habits.

3. Improvement in Diabetes

Many patients notice improved blood sugar levels shortly after surgery.

4. Better Heart Health

Weight loss helps reduce cholesterol levels and blood pressure.

5. Improved Mobility

Patients often experience relief from joint pain and increased physical activity.

6. Enhanced Confidence and Mental Health

Weight loss can improve self-esteem, social confidence, and emotional well-being.

Additional Benefits

No intestinal rerouting
Shorter surgery duration
Smaller incisions
Faster recovery
Long-lasting results

Lifestyle Changes After Surgery

Patients should:

Follow healthy eating habits.
Exercise regularly
Attend follow-up visits
Avoid overeating
Stay hydrated

The team at Lux Hospitals provides complete nutritional and lifestyle support to help patients maximise the benefits of Sleeve Gastrectomy.

Choose Lux Hospitals for trusted bariatric expertise Choose Lux Hospitals for trusted bariatric expertise

Risks and Complications of Sleeve Gastrectomy

Although Sleeve Gastrectomy is considered safe, every surgery carries some risks. Understanding potential complications helps patients better prepare and follow proper post-surgical care.

Possible Risks of Sleeve Gastrectomy

Short-Term Risks

Bleeding
Infection
Blood clots
Leakage from staple lines
Nausea or vomiting

Long-Term Risks

Acid reflux
Nutritional deficiencies
Weight regain: Possible over time if lifestyle and diet recommendations are not maintained.
Narrowing of the stomach sleeve

How Risks are Reduced?

At Lux Hospitals, surgeons follow strict safety protocols to minimise complications. Patients receive:

Detailed pre-operative evaluation
Expert surgical care
Personalised diet plans
Regular follow-up monitoring

Warning Signs to Watch For

Contact your doctor immediately if you experience:

Severe abdominal pain
Fever
Persistent vomiting
Difficulty swallowing
Chest pain

Get expert bariatric treatment with advanced care.Get expert bariatric treatment with advanced care.

Who is the Right Candidate for Sleeve Gastrectomy?

You may be a suitable candidate for Sleeve Gastrectomy if:

Your BMI is above 35
You have obesity-related health conditions.
Diet and exercise have failed.
You are committed to lifestyle changes.
You understand the long-term process.

A proper consultation at Lux Hospitals helps determine whether the surgery is the right option for your health goals.

Consult bariatric experts for personalised obesity treatment Consult bariatric experts for personalised obesity treatment

Life After Sleeve Gastrectomy

It takes commitment and perseverance to live after a sleeve gastrectomy. Surgery is not a shortcut; it is a tool. Long-term results are higher for those who keep healthy habits.

Tips for Success After Surgery

Eat smaller meals
Avoid sugary foods
Exercise regularly
Stay hydrated
Take vitamins as prescribed.
Attend regular follow-up visits.

Patients often report:

Increased energy levels
Better sleep
Improved confidence
Enhanced quality of life

With proper medical guidance from Lux Hospitals, patients can achieve sustainable weight loss and healthier living.

Start your journey toward healthier living with Lux Hospitals.Start your journey toward healthier living with Lux Hospitals.

Conclusion

Sleeve Gastrectomy is an effective and life-changing bariatric surgery that helps individuals struggling with obesity achieve long-term weight loss and better overall health. From reducing hunger to improving obesity-related diseases, the procedure offers multiple benefits when combined with healthy lifestyle changes. Experienced bariatric specialists at Lux Hospitals offer patients individualised treatment programs, advanced surgical care, and ongoing support during their weight-loss journey. Speaking with a reputable bariatric specialist will help you make the best choice for your future health if you are considering a sleeve gastrectomy.

Frequently Asked Questions

How much weight can I lose after Sleeve Gastrectomy?

Within the first 12 to 18 months following a sleeve gastrectomy, the majority of patients lose between 50 and 70 per cent of their excess body weight. Maintaining a balanced diet, exercising frequently, and receiving regular follow-up care are all necessary for the desired outcomes. Patients who closely adhere to dietary and medicinal recommendations have far better long-term outcomes.

Is Sleeve Gastrectomy permanent?

Yes, Sleeve Gastrectomy is considered a permanent procedure because a large portion of the stomach is surgically removed. The stomach cannot return to its original size after surgery. Patients must commit to lifelong dietary and lifestyle changes to maintain successful results.

Is Sleeve Gastrectomy painful?

Most patients experience mild to moderate discomfort after Sleeve Gastrectomy, especially during the first few days of recovery. Pain is usually well controlled with medications and improves gradually as healing progresses. Minimally invasive laparoscopic techniques also help reduce pain and speed up recovery.

Why choose Lux Hospitals for Sleeve Gastrectomy?

Lux Hospitals offers laparoscopic bariatric surgery, performed by experienced surgeons, with modern technology and personalised care. The focus is on safe, efficient procedures and ongoing weight management support. Their thorough approach delivers sustainable, healthy outcomes.

Does Lux Hospitals provide post-surgery support after Sleeve Gastrectomy?

Yes, Lux Hospitals offers post-operative support, including nutrition counselling, follow-up, lifestyle advice, and recovery monitoring. Their bariatric care team guides patients toward healthy habits after surgery. Continuous support improves recovery, weight loss, and satisfaction.