Abdominal bloating is a frequent digestive complaint that can cause discomfort and disrupt daily life. Dr. Feenalie Patel, a gastroenterologist at Houston Methodist, explains that while some people experience mild and occasional bloating, others may have chronic symptoms that significantly affect their quality of life.
“For some people, bloating is mild and occasional, but for others, it can become chronic and significantly affect quality of life,” says Dr. Patel. “It’s not an easy symptom to describe — or diagnose.”
Bloating often results from trapped gas in the digestive tract. According to Dr. Patel, several biological mechanisms contribute to this sensation, including excess intestinal gas from food fermentation or delayed transit through the gut, visceral hypersensitivity where nerves in the gut overreact to normal stimuli, impaired coordination between breathing and abdominal muscles (abdomino-phrenic dyssynergia), changes in gut bacteria balance, and hormonal fluctuations such as those related to menstruation.
“Many people who report bloating may not actually have more gas in their intestines than others,” Dr. Patel says. “Instead, their bodies are reacting differently to normal amounts of gas, leading to sensations of pressure or distention.”
Bloating is commonly linked with functional gastrointestinal disorders like irritable bowel syndrome (IBS), where most patients report this symptom. Other conditions associated with chronic bloating include small intestinal bacterial overgrowth (SIBO), constipation, food intolerances such as lactose intolerance or fructose malabsorption, indigestion (dyspepsia), and celiac disease.
“If bloating is frequent and paired with other digestive symptoms, it may signal an underlying disorder that needs attention,” says Dr. Patel.
While most cases are benign and related to diet or lifestyle factors, certain warning signs should prompt medical evaluation. These include unintentional weight loss, blood in stool, persistent vomiting, ongoing diarrhea or constipation, and severe abdominal pain.
“You should consider seeing a gastroenterologist for further evaluation if bloating is impacting your daily life,” Dr. Patel says. “If it’s new, persistent or accompanied by other symptoms, it’s worth checking out.”
Stress also plays a role in digestive health due to the connection between the brain and gut known as the gut-brain axis. Stress can increase sensitivity in the gut and alter its function.
“It’s well-established that stress can increase visceral hypersensitivity and alter gut motility,” Dr. Patel said. “When we’re anxious or stressed, our digestive tracts can become more reactive, and we may feel bloated even without changes in diet.”
Preventing bloating often involves identifying trigger foods—such as lactose or gluten—and making dietary adjustments like eating slowly and reducing fatty foods. Avoiding habits that introduce extra air into the stomach—like chewing gum or drinking carbonated beverages—can also help. Regular physical activity supports digestion.
“Reducing stress is key,” says Dr. Patel. “Mindfulness, yoga and relaxation techniques can calm the gut-brain connection.”
Over-the-counter remedies for bloating include simethicone for breaking up gas bubbles; probiotics for balancing gut bacteria; peppermint oil capsules for relaxing intestinal muscles; and fiber supplements used cautiously since they can sometimes worsen symptoms if introduced too quickly.
“Fiber supplements can help regulate bowel movements, but use them with caution,” Dr. Patel says. “For some patients, fiber worsens bloating, especially if it’s added too quickly. Start low and increase slowly, with plenty of fluids.”
A gastroenterologist can help by evaluating symptoms to rule out serious conditions using tests such as breath tests for bacterial overgrowth or food intolerances and imaging studies when needed.
“Many of the lifestyle changes to relieve bloating can be challenging to do on your own, and a gastroenterologist can help provide guidance with your diet or supplements,” Dr. Patel says. “Getting expert support can make a big difference.”
“Bloating is a very real and treatable symptom,” Dr. Patel says. “With the right evaluation and care, most people can find relief and get back to feeling like themselves again.”
