Bloating and gas doctor in Seoul: find out why

When to see a bloating and gas doctor in Seoul

Passing gas 10 to 20 times a day is normal, and some belly swelling by evening is common. It is time to see a bloating and gas doctor in Seoul when symptoms are frequent, painful, embarrassing, getting worse, or arrived with a move to Korea or a change in diet.

At VEI Clinic, Dr. HyunSung Park starts by separating three things people often lump together: the feeling of fullness or pressure (bloating), visible swelling of the belly (distension), and excess burping or flatulence. Each points toward different causes.

Common causes we look for

• Swallowed air: eating fast, carbonated drinks, chewing gum, talking while eating; usually causes burping.
• Fermentable foods: beans, onion, garlic, wheat, some fruits and sugar alcohols in "sugar-free" products.
• Lactose intolerance: very common in adults of East Asian descent, often noticed after lattes or milk.
• Constipation: trapped stool slows gas transit and is an underrated cause of bloating.
• SIBO: too many bacteria in the small intestine, often with diarrhea, after gastroenteritis or abdominal surgery.
• IBS and functional dyspepsia: sensitive gut nerves that make normal amounts of gas feel uncomfortable.
• Less common: celiac disease, H. pylori, slow stomach emptying, medication side effects and, rarely, ovarian or other abdominal conditions.

Tests that actually help

Most bloating does not need a big panel of tests. Based on your story, Dr. Park may suggest a SIBO breath test, which measures hydrogen and methane after you drink a sugar solution; a lactose or fructose challenge; blood tests for anemia, inflammation, thyroid and celiac antibodies; stool tests if infection or parasites are possible; an H. pylori test for upper-abdominal symptoms; or an abdominal ultrasound to check organs and look for fluid.

Food sensitivity and gut microbiome tests are available, but their clinical value for bloating is still limited and debated. If you choose them, we explain what they can and cannot tell you. Persistent upper-abdominal symptoms with warning signs may need endoscopy, for which we can refer you to a hospital.

What helps, and who needs a different approach

Simple changes often work: eat more slowly, cut fizzy drinks and gum, treat constipation, and reduce the specific trigger foods your history suggests. A short, supervised low-FODMAP trial can identify triggers without permanently restricting your diet. Peppermint oil, simethicone and walking after meals help some people.

When a cause is confirmed, treatment is targeted: lactase or dairy swaps for lactose intolerance, antibiotics such as rifaximin for proven SIBO, and gut-nerve calming medications for IBS. People with new bloating after age 50, weight loss, or a persistently swollen abdomen need investigation before dietary experiments.

Keeping a two-week symptom diary

Before your visit, a simple diary often reveals more than a test. Note what you ate and drank, when bloating started, how your belly looked by evening, your bowel movements and any stress or poor sleep. A photo of your abdomen in the morning and evening can show whether visible distension is really happening.

Patterns we look for include bloating within an hour of dairy (lactose), after apples, honey or sweet drinks (fructose), after sugar-free gum or protein bars (sugar alcohols), mainly on days without a bowel movement (constipation), or steadily through the day regardless of food (often gut sensitivity). Bring the diary to your appointment; it helps Dr. Park decide whether a breath test, blood test or diet trial is the best next step.

When to worry: red flags

See a doctor soon if bloating is new and persistent, especially with unintended weight loss, early fullness after small meals, blood in the stool, anemia, ongoing diarrhea, or a swollen belly that does not go down overnight. In women, new persistent bloating should prompt a check for gynecologic causes, including the ovaries.

Go to an ER or call 119 in Korea if you have severe abdominal pain, a hard and tender belly, repeated vomiting, inability to pass gas or stool, vomiting blood or black stools, high fever with abdominal pain, or fainting. These can signal a bowel obstruction or other emergency.