For some people, weight gain is not simply about willpower. Appetite regulation, hormones, habits, stress, sleep, and medical conditions can all play a role. An endoscopic gastric balloon is a temporary, minimally invasive option designed to support meaningful weight loss by helping you feel full sooner and eat smaller portions, while you build sustainable lifestyle changes with clinical guidance.

What an endoscopic gastric balloon is designed to do

An endoscopic gastric balloon, also called an intragastric balloon, is a soft balloon placed inside the stomach and then filled with sterile saline (salt water). By taking up space in the stomach, it helps reduce hunger and increases the feeling of fullness after smaller meals.

Unlike bariatric operations such as gastric sleeve or gastric bypass, this approach does not involve surgical cuts and does not permanently change the digestive system. The balloon is intended to be removed after a set period, commonly around six months, depending on the balloon type and your individual plan.

Who may benefit most, and when it may not be the right choice

A gastric balloon can be considered for adults who:

• Are living with overweight or obesity and have not achieved sufficient results with diet, activity changes, and medical support alone
• Prefer a non-surgical, temporary option
• Need a structured “reset” period to help establish portion control and healthier eating patterns

Suitability is individual, but it is often discussed for people with a body mass index (BMI) in the obesity range (commonly around 30 to 40). In some cases, it may be considered at a lower BMI when there are obesity-related health concerns, but this depends on clinical assessment and local medical guidance.

A gastric balloon may not be suitable if you have certain stomach or oesophagus conditions, such as:

• Active stomach ulcers or significant gastritis
• Severe reflux that is not well controlled
• A large hiatus hernia
• Certain inflammatory bowel or upper gastrointestinal conditions

It is also usually avoided in people who are pregnant, planning pregnancy in the near term, or who have had certain previous stomach surgeries. The safest approach is a personalised assessment, as risks vary with medical history.

Assessment and planning before treatment

Before proceeding, a detailed consultation is essential to confirm that a balloon is appropriate and safe. This typically includes:

• A review of your medical history, medications, allergies, and previous procedures
• Discussion of weight history, eating patterns, and previous weight-loss attempts
• Screening for reflux symptoms and other digestive concerns
• Baseline measurements such as weight, BMI, and sometimes blood tests

Because long-term success depends on behaviour change, some people benefit from additional support such as nutritional counselling and, where appropriate, psychological support. The goal is to ensure expectations are realistic and that you have a clear plan for eating, activity, and follow-up while the balloon is in place and after it is removed.

How the procedure is generally carried out

Placement is performed endoscopically. This means a flexible camera (endoscope) is passed through the mouth into the stomach to guide the procedure.

In most cases:

• Sedation is used to keep you comfortable
• The stomach is inspected to ensure it is safe to proceed
• The deflated balloon is positioned in the stomach
• The balloon is filled with sterile saline, often tinted with a small amount of blue dye (this can help detect a leak if it occurs)
• The endoscope is removed and you are monitored during recovery

The procedure is typically completed in a short visit, and many people go home the same day once it is safe to do so.

Balloon removal

Removal is planned in advance and is usually performed using a similar endoscopic approach under sedation. The balloon is punctured, deflated, and removed through the mouth. Keeping to the recommended removal timeframe is important, as leaving a balloon in longer than advised can increase the risk of complications.

What recovery is like and how eating progresses

The first few days are often the most challenging as the stomach adapts to the balloon. It is common to experience:

• Nausea and vomiting
• Cramping or upper abdominal discomfort
• Bloating
• Reflux or heartburn

Medication is often prescribed to reduce nausea and protect the stomach lining, and reflux treatment may be recommended.

Diet progression is gradual and guided:

• First days: liquids only
• Next stage: soft foods
• Then: a structured return to solid foods with smaller portions

Most people can return to normal daily activities relatively quickly, but it is sensible to plan for a few quieter days after placement in case symptoms are stronger than expected.

Expected results and what influences success

Weight loss varies from person to person. Many people notice early changes in appetite and portion size within the first weeks. The balloon can support clinically meaningful weight loss over the months it remains in place, particularly when combined with:

• A structured nutrition plan
• Regular physical activity appropriate for your health and fitness level
• Ongoing follow-up and accountability

It is important to understand that the balloon is a tool, not a cure. Weight regain can occur after removal if eating patterns and activity levels return to previous habits. The most valuable part of the balloon period is often the opportunity to establish sustainable routines while appetite is more manageable.

Risks, side effects, and important limitations

All medical procedures carry risk. Your doctor will discuss risks in detail and tailor advice to your health profile. Potential issues include:

Common, usually temporary side effects

• Nausea and vomiting, especially in the first few days
• Abdominal discomfort or cramping
• Bloating
• Heartburn or reflux

Less common but important complications

• Stomach irritation or ulcers: the balloon can irritate the stomach lining
• Balloon intolerance: ongoing symptoms may make early removal necessary
• Balloon deflation: if the balloon deflates, it may move into the intestines and, rarely, cause a blockage
• Bowel obstruction: a medical emergency that may require urgent treatment
• Perforation (tear) of the stomach or oesophagus: rare but serious
• Aspiration risk during vomiting: uncommon, but can be dangerous

You should seek urgent medical help if you develop severe or worsening abdominal pain, persistent vomiting, inability to keep fluids down, black stools, fever, fainting, or signs of dehydration.

The role of follow-up and ongoing support

A gastric balloon works best as part of a structured weight-management programme. Follow-up typically focuses on:

• Managing side effects and reflux symptoms
• Building a practical eating plan with adequate protein and nutrient-dense foods
• Portion guidance and strategies for social eating
• Activity planning and gradual fitness progression
• Monitoring for nutritional issues and, when needed, recommending supplements

After balloon removal, continued support helps protect your progress. Many people benefit from a clear maintenance plan that includes regular check-ins, realistic targets, and strategies for high-risk periods such as travel, holidays, or stressful life events.

Your consultation and next steps

If you are considering a gastric balloon, the most helpful next step is a specialist consultation focused on safety, suitability, and long-term planning. Our medical team will review your health history, discuss your goals, explain what to expect before and after placement, and outline a follow-up plan designed to support lasting change.

Choosing a temporary procedure makes sense when it is paired with a long-term strategy. With the right preparation and support, an endoscopic gastric balloon can be a valuable step toward improved health, mobility, and confidence.