Is Sleeve Gastrectomy Painful?

Because the surgery is performed under general anesthesia, you will not feel any pain during the procedure. Mild discomfort or pain is common in the days following the operation, but it can be managed with prescription pain medication.

Will I need to follow a special diet after surgery?

Yes, after a sleeve gastrectomy you will follow a staged diet that begins with liquids, progresses to pureed foods, and ultimately to solid foods. A nutritionist at ONE CLINIC will guide you through each stage.

How soon will I start losing weight?

Weight loss begins immediately after surgery. Most patients lose 10–20% of their total body weight in the first month and 60–70% of their excess weight within the first year.

Who Can Undergo Sleeve Gastrectomy?

Only bariatric surgeons approved by the board should perform sleeve gastrectomy. At ONE CLINIC in Istanbul, our surgeons are highly experienced in performing sleeve gastrectomy and will provide you with the highest level of care.

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Laparoscopic Gastric Sleeve (Sleeve Gastrectomy)

Permanent Weight Loss with Keyhole Surgery and 12-Month Dietitian Mentoring

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Clinical Operation Parameters

Surgery Duration

60 - 90 Minutes

Anesthesia Type

General Anesthesia

Hospital Stay

2 - 3 Nights VIP Suite

Istanbul Stay

5 - 6 Days

Recovery Timeline: Walking 3 hours post-op; 70-80% excess body weight lost within the first year.

Medically Reviewed by: Dr. Muzaffer & One Clinic Surgical Board

Last Medical Review: September 2026

Compliant with MoH Clinical Standards

Surgical Methodology & Care Protocol

75-80% of the stomach is removed laparoscopically through tiny keyhole punctures, dramatically reducing capacity and eliminating the hunger hormone Ghrelin.

Laparoscopic Gastric Sleeve (Sleeve Gastrectomy) Clinical At-a-Glance Parameters

Surgery Duration: 60 - 90 Minutes
Anesthesia Type: General Anesthesia
Hospital Stay: 2 - 3 Nights VIP Suite
Istanbul Stay: 5 - 6 Days
Recovery: Walking 3 hours post-op; 70-80% excess body weight lost within the first year.

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Laparoscopic Gastric Sleeve (Sleeve Gastrectomy) Procedure & Recovery Videos

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Laparoscopic Gastric Sleeve (Sleeve Gastrectomy) Surgical Procedure & Recovery Guide

Complete surgical methodology, technique comparison, and aftercare recovery protocol prepared by One Clinic medical board.

Sleeve Gastrectomy at ONE CLINIC

Gastric sleeve surgery, also known as sleeve gastrectomy, is a highly effective weight loss procedure that helps patients lose a significant amount of weight by reducing the size of the stomach. At ONE CLINIC in Istanbul, Turkey, we specialize in this minimally invasive surgical field and offer our patients a safe, long-term solution for weight management.

What is Gastric Sleeve Surgery?

Gastric sleeve surgery is a procedure in which a portion of the stomach is removed, leaving behind a smaller, tube-shaped stomach. This limits the amount of food you can eat, helping you feel full faster. This procedure is ideal for individuals struggling with obesity who are seeking sustainable weight loss.

Preparing for Gastric Sleeve Surgery – Important Pre-Operative Instructions

Proper preparation is essential for a successful gastric banding surgery and a smooth recovery. Here’s what you need to do before the operation:

Consultation and Medical Evaluation:During the consultation at ONE CLINIC, our bariatric surgeon will assess your medical history, current health, and weight‑loss goals to determine whether you are a suitable candidate for gastric banding surgery. We will also discuss the expected outcomes and potential risks.

Pre‑operative Diet:Prior to surgery, you may be asked to follow a special high‑protein, low‑carbohydrate diet to reduce liver size and make the operation safer. This diet typically begins 1–2 weeks before the procedure.

Fasting Before Surgery:Before the operation, you will need to fast for at least 8–12 hours according to your surgeon’s instructions. This ensures that your stomach is empty for the procedure.

Avoid Smoking and Alcohol:Quit smoking at least two weeks before surgery, as smoking can impede healing and increase the risk of complications. Likewise, refrain from alcohol consumption in the days leading up to the operation.

Arrange Transportation and Assistance: Because you will be under anesthesia during the procedure, ensure that someone can drive you home and help with daily tasks during the first few days of recovery.

Proper postoperative care is essential for the success of your surgery and achieving your weight‑loss goals. Here are the post‑operative instructions:

Dietary Transition:You will begin with a liquid diet for the first week after surgery, then progress to soft foods, and eventually to solid foods. Your nutrition specialist at ONE CLINIC will provide a detailed postoperative diet plan to help your body adapt to the new, smaller stomach.

Hydration:Drinking plenty of water throughout the day is essential to ensure adequate fluid intake. Sip water slowly to prevent overfilling your stomach and to avoid nausea.

Avoid Strenuous Activities:Refrain from heavy physical activities for the first 4–6 weeks after surgery. Walking and light exercises are recommended to improve circulation and support the healing process.

Follow-Up Appointments:Regular follow-up appointments will be scheduled at ONE CLINIC, where our team will guide and support you in monitoring your recovery and weight loss progress.

Long-Term Dietary Changes:Adhering to a healthy, balanced diet is crucial for long-term success. High-protein, low-sugar, and nutrient-rich foods will be recommended to maximize weight loss and enhance overall health.

Recovery Time After Sleeve Gastrectomy

The recovery period for gastric sleeve surgery is relatively short compared to other weight‑loss procedures:

Hospital Stay:Most patients stay in the hospital for 2–3 days after surgery for monitoring and recovery.

Return to Normal Activities:You can usually resume light activities within 1–2 weeks. Full recovery, including return to strenuous activities or exercise, typically takes about 4–6 weeks.

Long‑Term Recovery:It will take several weeks for your stomach to adjust to its new size. Adhering to dietary and activity restrictions is essential to ensure proper healing and to avoid complications.

Who Is Eligible for Sleeve Gastrectomy?

The ideal candidates for sleeve gastrectomy in Istanbul are:

Adults aged 18–65:The procedure is suitable for adults with a body mass index (BMI) of 35 or higher, or for those with a BMI of 30+ who have obesity‑related health conditions such as type 2 diabetes or hypertension.

Commitment to Lifestyle Changes:Candidates must be prepared to make long-term changes to their diet and lifestyle to maintain weight loss after surgery.

Good Health:Patients should be in generally good health, without any significant medical conditions that could affect recovery or increase surgical risks.

How Much Weight Can You Lose with Gastric Bypass Surgery?

Most patients lose 60-70% of their excess body weight within the first year after gastric reduction surgery. This can translate to significant weight loss, depending on your starting weight. Long-term success depends on your adherence to the dietary and lifestyle changes recommended by your medical team at ONE CLINIC.

Can Stomach Band Surgery Be Performed Without Leaving Scars?

Stomach band surgery is typically performed using a minimally invasive laparoscopic technique that involves small incisions in the abdomen:

Minimizing Scarring:Small incisions, typically 1-2 cm in size, leave minimal scars that fade over time. Proper postoperative care—such as keeping the incisions clean and following your surgeon’s instructions—keeps scars minimal and often unnoticeable after a few months.

Recovery Process:Incisions usually heal within 2–3 weeks, and scars begin to fade over the next few months. Your surgeon may recommend scar-reducing treatments to further diminish their appearance. Anesthesia Options for Stomach Band Surgery

At ONE CLINIC in Istanbul, gastric banding surgery is performed under general anesthesia:

General Anesthesia:You will be fully asleep during the procedure, so you will not feel any pain or discomfort. The surgery typically lasts 1–2 hours, after which you will be taken to the recovery room to awaken from anesthesia.

Monitoring and Safety:Our experienced anesthesiologists will continuously monitor your vital signs throughout the procedure to ensure your safety and comfort.

Why Choose ONE CLINIC in Istanbul for Gastric Banding Surgery?

At ONE CLINIC, we provide state‑of‑the‑art gastric banding surgery to help patients achieve life‑changing weight loss in a safe and supportive environment. Our experienced bariatric surgeons, nutritionists, and support team are dedicated to guiding you at every step of your weight‑loss journey—from the initial consultation to long‑term follow‑up care. As Istanbul’s leading gastric banding provider, we are committed to helping you reach your health and wellness goals.

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Laparoscopic Gastric Sleeve (Sleeve Gastrectomy) Frequently Asked Questions

Answers from chief surgeons regarding consultation, procedure comfort, and aftercare.

The surgery typically lasts between 1–2 hours, depending on the complexity of the case. You will need to stay in the hospital for a few days to monitor your recovery.

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