Gastric balloon guide

A gastric balloon is a non-surgical weight loss procedure that involves placing an inflatable silicone balloon in the stomach to reduce available space for food. This temporary device helps people feel fuller faster, leading to reduced food intake and subsequent weight loss. Unlike bariatric surgeries, gastric balloons don't require incisions or permanent changes to the digestive system, making them an attractive option for those seeking less invasive weight loss interventions.

Gastric balloon guide

What is a Gastric Balloon?

A gastric balloon is a soft, expandable medical device designed to partially fill the stomach and reduce its capacity. The balloon is inserted in a deflated state during an endoscopic procedure, then filled with a sterile saline solution until it reaches approximately the size of a grapefruit. Most gastric balloons remain in place for 6 months before removal, though some newer models can stay in place for up to 12 months.

There are several types of gastric balloons available:

  • Single balloon systems (such as Orbera and Spatz3)

  • Dual balloon systems (like ReShape)

  • Swallowable balloon pills (Obalon)

Each system has unique characteristics regarding placement method, duration of use, and specific weight loss outcomes. Gastric balloons are generally intended for individuals with a BMI between 30 and 40 who have not succeeded with diet and exercise alone but may not qualify for or desire bariatric surgery.

How Does a Gastric Balloon Work?

Gastric balloons function through several mechanisms that collectively contribute to weight loss:

First, the balloon occupies physical space in the stomach, reducing its capacity and limiting the amount of food that can be comfortably consumed during meals. This spatial effect helps create earlier satiety signals, making patients feel full after eating smaller portions.

Second, the balloon slows gastric emptying—the rate at which food leaves the stomach and enters the small intestine. This prolonged presence of food in the stomach extends feelings of fullness and satisfaction between meals.

Additionally, the balloon’s presence may influence hormonal signals related to hunger and fullness. Some research suggests changes in ghrelin (the “hunger hormone”) and other appetite-regulating hormones following balloon placement.

The expected weight loss with a gastric balloon typically ranges from 10-15% of total body weight over the 6-month period. However, long-term success depends significantly on adopting healthier eating habits and increasing physical activity during and after the balloon treatment.

Is Gastric Balloon Safe?

Gastric balloons have established safety profiles when used in appropriate candidates under proper medical supervision. The procedure received FDA approval in the United States in 2015, following years of use in other countries. However, like all medical interventions, gastric balloons carry certain risks and potential complications.

Common side effects include nausea, vomiting, abdominal pain, and reflux, particularly in the first few days after placement. These symptoms typically resolve within 1-2 weeks as the body adjusts to the balloon’s presence. Anti-nausea and acid-reducing medications are often prescribed during this adaptation period.

More serious but rare complications can include:

  • Balloon deflation and migration

  • Intestinal obstruction

  • Gastric perforation

  • Ulceration

  • Infection

The risk of major complications is generally below 1%. Patients with certain gastrointestinal conditions, previous stomach surgery, hiatal hernias, or esophageal disorders may not be suitable candidates for the procedure.

Regular follow-up appointments with healthcare providers are essential throughout the treatment period to monitor progress and address any concerns. The balloon is removed after its intended duration to prevent deterioration of the device and potential complications from prolonged use.

Gastric Balloon Procedure and Experience

The gastric balloon placement is performed as an outpatient procedure typically taking 20-30 minutes. Most patients receive light sedation rather than general anesthesia. During the procedure, a thin tube with a camera (endoscope) is passed through the mouth into the stomach. The deflated balloon is then inserted and filled with saline solution, often colored with methylene blue (which serves as a visual indicator if the balloon leaks).

After placement, patients generally experience:

  1. An adjustment period of 3-7 days with potential discomfort, nausea, and vomiting

  2. Dietary progression from liquids to pureed foods to solid foods over several weeks

  3. Regular consultations with dietitians and healthcare providers

  4. Weight loss occurring primarily in the first 3-4 months

Removal follows a similar endoscopic process, where the balloon is deflated and extracted through the mouth. This procedure also typically takes 20-30 minutes and requires minimal recovery time.

Gastric Balloon Costs and Provider Options

The cost of gastric balloon procedures varies depending on the type of balloon, geographic location, provider fees, and inclusion of support services. Most insurance plans do not currently cover gastric balloons, making them primarily self-pay procedures.


Balloon Type Average Cost Range Typical Duration Notable Features
Orbera $6,000-$9,000 6 months Single-balloon system, most widely used globally
ReShape $7,000-$10,000 6 months Dual-balloon design for reduced migration risk
Obalon $8,000-$11,000 6 months Swallowable balloon pills (typically 3 balloons)
Spatz3 $8,000-$12,000 Up to 12 months Adjustable volume, longer duration

Prices, rates, or cost estimates mentioned in this article are based on the latest available information but may change over time. Independent research is advised before making financial decisions.

Most comprehensive gastric balloon programs include:

  • Pre-procedure consultation and eligibility assessment

  • The balloon placement procedure

  • Nutritional counseling

  • Regular follow-up appointments

  • Removal procedure

  • Some level of post-removal support

When considering a gastric balloon, it’s advisable to research providers that offer comprehensive support programs rather than focusing solely on the initial cost, as ongoing lifestyle guidance significantly impacts long-term success.

Long-term Results and Considerations

The gastric balloon is designed as a temporary intervention, and long-term success depends largely on using the balloon period as an opportunity to establish healthy eating patterns and increase physical activity. Studies show that patients who adhere to recommended dietary and lifestyle changes maintain more weight loss after balloon removal.

On average, patients can expect to maintain about 50% of their weight loss in the year following balloon removal if they continue with healthy habits. Without lifestyle changes, most patients regain lost weight within 2-3 years after removal.

Many providers recommend comprehensive programs that include behavioral counseling, nutritional education, and fitness guidance to maximize long-term outcomes. Some patients may benefit from additional weight management interventions following the balloon period, depending on their individual health goals and needs.

This article is for informational purposes only and should not be considered medical advice. Please consult a qualified healthcare professional for personalized guidance and treatment.