Is a gastric balloon better than a gastric sleeve?

Neither is better for everyone. A balloon is temporary and non-surgical and suits people with a BMI of roughly 27 to 40. A sleeve is permanent surgery and suits people with a BMI of 40 or more, or 35 or more with weight-related illness.

How much weight do you lose with a balloon compared with a sleeve?

A gastric balloon leads on average to about 10% to 15% total body weight loss while it is in place. A gastric sleeve usually leads to considerably more weight loss over one to two years.

Can I have a gastric sleeve after a gastric balloon?

Yes. A balloon does not prevent later bariatric surgery, and it is sometimes used first to reduce weight before an operation.

Gastric Balloon vs Gastric Sleeve

A gastric balloon and a gastric sleeve are both used to treat excess weight, but they are very different treatments. The balloon is temporary and placed without surgery. The sleeve is an operation that permanently removes a large part of the stomach.

Which one is appropriate depends mainly on your BMI, your health and how much weight you need to lose.

The Main Difference

A gastric balloon sits inside the stomach for 4 to 12 months and is then removed or passes naturally. Nothing is cut and the stomach returns to its previous state afterwards.

A gastric sleeve (sleeve gastrectomy) is keyhole surgery under general anesthesia. Around three quarters of the stomach is removed and the change is permanent.

Side-by-Side Comparison

Type of treatment

Gastric balloon: non-surgical, placed by endoscopy or swallowed as a capsule
Gastric sleeve: laparoscopic surgery

Anesthesia

Gastric balloon: sedation for endoscopic balloons, usually none for Allurion
Gastric sleeve: general anesthesia

Hospital stay

Gastric balloon: same-day discharge in uncomplicated cases
Gastric sleeve: several nights in hospital

Reversible?

Gastric balloon: yes, it is temporary
Gastric sleeve: no

Typical weight loss

Gastric balloon: on average about 10% to 15% of total body weight while the balloon is in place
Gastric sleeve: considerably more, usually reported as a large share of excess weight over one to two years

Who it is usually for

Gastric balloon: people with a BMI of roughly 27 to 40 who have not succeeded with diet and exercise alone
Gastric sleeve: people with a BMI of 40 or more, or 35 or more with weight-related illness

These figures are general ranges from published studies. Individual results vary, and neither treatment works without changes in eating habits.

When a Gastric Balloon Makes More Sense

Your BMI is too low for bariatric surgery but your weight is affecting your health
You want to avoid an operation and general anesthesia
You need to lose a moderate amount of weight
You want a temporary tool to help you change portion sizes and habits
You cannot take several weeks away from work

When a Gastric Sleeve Makes More Sense

Your BMI is 40 or above, or 35 and above with conditions such as type 2 diabetes or sleep apnea
You need to lose a large amount of weight and keep it off long term
You have already tried a balloon or other methods without lasting results

If you are in this group, choosing a balloon only because it is cheaper or feels safer is usually not the right decision. We say this openly to patients during the assessment.

Risks

The balloon has fewer serious risks because there is no surgery. The common problems are nausea, vomiting and cramps in the first days. Rare complications include ulcers, balloon deflation and blockage. More detail is on our side effects and risks page.

The sleeve carries surgical risks such as bleeding, leakage from the staple line and blood clots, as well as long-term issues such as reflux and vitamin deficiencies. These are uncommon in experienced hands but more serious when they occur.

Recovery

After a balloon, most people are back to normal activities within a few days once the nausea settles.

After a sleeve, recovery takes several weeks, with a staged diet and lifelong vitamin supplements.

Cost in Turkey

Our gastric balloon packages cost between €2,250 and €3,150 depending on the balloon. Details are on the gastric balloon cost page. Gastric sleeve surgery costs more because it involves an operating theatre, general anesthesia and a hospital stay.

Price should come after suitability. A cheaper treatment that does not fit your situation is not good value.

Can You Have a Sleeve After a Balloon?

Yes. A balloon does not prevent later bariatric surgery. Some patients with a very high BMI use a balloon first to reduce weight and surgical risk before an operation. This is decided case by case by the doctor.

How We Help You Decide

Dr. Onur Peşluk is a general surgeon who performs both bariatric surgery and balloon placements, so the recommendation does not depend on one method. Send us your height, weight and medical history and we will tell you honestly whether a balloon is a reasonable option for you.

Ask Which Balloon May Suit You

Send us your age, height, weight and medical history on WhatsApp or through our contact page. We will tell you which balloons may be suitable and confirm the package in writing.

Medically reviewed by Dr. Onur Peşluk, General Surgeon. Last reviewed: November 2026.

Medical disclaimer: This page gives general information and does not replace a medical consultation. Gastric balloon treatment has risks and is not suitable for everyone.