Gastric balloon: endoscopic or swallowable? Differences, the process and questions to ask your doctor
Short answer: There are two main types of gastric balloon. An endoscopic balloon is placed under sedation with an endoscope, stays in the stomach for 6 or 12 months depending on the model and is removed endoscopically. A swallowable balloon is swallowed as a capsule, routine placement needs neither anaesthesia nor endoscopy, and it is designed to empty and pass naturally after about 16 weeks.
Which one suits me, and who decides?
The choice depends on body mass index, medical history, the planned treatment period and personal preference, and is made at consultation. Op. Dr. Salim Balin is a general surgeon who assesses both balloon types.
Important: tolerability and approval status
Early removal because the balloon is not tolerated has been reported in about 2% with the swallowable balloon and, depending on the study, about 5–8% with endoscopic (conventional) balloons. When choosing, always ask your doctor about the approval and registration status of the device to be used.
| Swallowable balloon | Endoscopic (conventional) balloon | |
|---|---|---|
| Early removal due to intolerance | About 2% | About 5–8% |
| US FDA approval | Yes (2026) | Some models |
| Turkish Ministry of Health registration | Yes | Only some brands |
Rates come from published studies and may vary between individuals; with both methods, nausea and cramps in the first days are usually controlled with medication.
Endoscopic and swallowable balloons compared
| Feature | Endoscopic balloon | Swallowable balloon |
|---|---|---|
| Placement | Endoscopically, through the mouth into the stomach | Capsule swallowed with water, filled through a thin catheter |
| Anaesthesia | Sedation | Not needed for routine placement |
| Position check | During endoscopy | Imaging (X-ray) |
| Time in the stomach | 6 or 12 months depending on the model | About 16 weeks |
| Removal | Endoscopically at the end of the period | Empties and passes naturally |
| First days | Nausea, cramps; may last a few days | Nausea, cramps; usually shorter |
| Follow-up | Dietitian and doctor visits | Dietitian, doctor visits and a connected scale |
Weight loss varies between individuals; starting weight, treatment length, nutrition and activity determine the outcome. Targets are discussed individually at consultation.
Which balloon type is considered for whom?
There is no single “right balloon”; several criteria are weighed together.
- Planned treatment period: a 6- or 12-month endoscopic balloon for longer support; a 16-week swallowable balloon when a shorter period is enough.
- Preference about anaesthesia and endoscopy: the swallowable balloon may be considered for people who do not want, or are at risk from, sedation and endoscopy.
- Body mass index and other conditions: each device has its own eligibility criteria in its instructions for use.
- Ability to swallow a capsule: difficulty swallowing may rule out the swallowable balloon.
- Time for follow-up: with both methods, regular dietitian and doctor follow-up drives the result.
For people living in another city or abroad: the swallowable balloon does not require a return visit to a healthcare facility for removal. It can therefore be a suitable option for people who live in another city or abroad, or who do not want to come back for removal. The balloon empties and passes naturally after about 16 weeks, and nutrition and weight follow-up can continue remotely with a connected scale, a mobile app and video calls. You should still be able to reach a healthcare facility where you live if unexpected symptoms occur.
Questions to ask your doctor
- Is an endoscopic or a swallowable balloon better for me, and why?
- How long will it stay, and how will it be removed or passed?
- Will I need sedation or anaesthesia?
- Does the device have FDA approval and Turkish Ministry of Health registration?
- What symptoms should I expect in the first days, and which medicines will I take?
- How many check-ups, dietitian sessions and weigh-ins are planned?
- How can I reach you at night or at the weekend?
- What is the weight-maintenance plan after the balloon?
The process: from consultation to follow-up
- Consultation: weight history, BMI, other conditions and medicines are reviewed.
- Tests: blood tests and, if needed, further investigations.
- Choosing the balloon type together, using the criteria above.
- Placement: under sedation for the endoscopic balloon; as a capsule with imaging for the swallowable balloon.
- First week: medicines for nausea and cramps; nutrition starts with fluids. See the nutrition guide after a gastric balloon.
- Regular follow-up with the dietitian and doctor while the balloon is in place.
- After the balloon: the maintenance plan continues for at least 6 more months.
Who should not have a balloon or needs careful assessment?
- Previous stomach or oesophageal surgery
- Large hiatal hernia, active stomach ulcer or history of stomach bleeding
- Inflammatory bowel disease
- Pregnancy, planned pregnancy or breastfeeding
- Blood thinners or regular painkillers (do not stop medicines on your own)
- Uncontrolled serious chronic disease or an eating disorder
Frequently asked questions
Who places and follows up the balloon?
Op. Dr. Salim Balin is a general surgeon who assesses endoscopic and swallowable gastric balloons and follows patients throughout treatment.
How is the swallowable balloon passed?
After about 16 weeks the fluid inside drains and the empty balloon passes naturally through the bowel. Uncomplicated passage is not guaranteed in every patient, so follow-up matters.
How long does endoscopic placement take?
About 30 minutes under sedation; most people go home the same day after a few hours of observation.
Is a gastric balloon surgery?
No. Both types are non-surgical weight-management methods with no incision.
I live in another city or abroad. Can I have a gastric balloon?
It can be considered. Because the swallowable balloon does not require a return visit for removal and follow-up can be done remotely, it can be a suitable option. Eligibility is decided at the first consultation.
Related guides
Sources and further reading
Mayo Clinic · Intragastric balloonNHS · Gastric balloonClinical Endoscopy · Review of intragastric balloonsVantanasiri et al. · Meta-analysis of the swallowable balloon (early removal 2.3%)FDA · PMA approval of a swallowable gastric balloon (P250023, 2026)General patient information. The right approach is decided in consultation. Results vary from person to person.