A gastric balloon is a medical device made of silicone or polyurethane that is placed in the stomach to aid weight loss and is inflated with liquid or gas. The endoscopic gastric balloon method is the most commonly used technique and is generally performed in the following steps:

Gastric Balloon Application Steps
Patient Assessment:
The patient undergoes a detailed health screening by the doctor.
It is generally suitable for individuals with a body mass index (BMI) between 30 and 40 who are unable to lose weight through diet.
It may not be suitable for individuals with stomach disorders (e.g., ulcers, reflux) or serious chronic diseases.
Preparation:
The patient is generally required to fast for 8-12 hours before the procedure.
Sedation or light anesthesia is administered to ensure the patient’s comfort.
Endoscopic Placement:
A flexible endoscope (a thin tube containing a camera and light) is advanced through the mouth into the stomach.
The empty gastric balloon is inserted into the stomach using the endoscope. Balloon Inflation:
After the balloon is placed in the stomach, it is inflated with sterile fluid (usually 400-700 ml of blue-colored saline or a solution containing methylene blue) or gas.
Inflation of the balloon reduces stomach volume, allowing for a smaller intake of food.
Completion of the Procedure:
The procedure usually takes 15-30 minutes.
The patient is discharged after a short observation period.
Post-Gastric Balloon Procedure

The first few days:

Side effects such as nausea, vomiting, and stomach cramps may occur.
A liquid diet is started and gradually transitioned to soft foods.

Follow-up:

Regular follow-up should be performed under the supervision of a dietitian and doctor.
A balanced diet and physical activity are important.

Balloon Removal:

Gastric balloons are usually removed after 6-12 months.
Removal is also performed endoscopically, by evacuating the balloon contents and removing them from the stomach.