What should you know about swollen stomach left side pain?

Gas, constipation, or gastroenteritis can make the abdomen feel full and uncomfortable. Diverticular disease may cause pain in the lower left abdomen, while Crohn's disease or coeliac disease can cause digestive symptoms with bloating and altered bowel habits. Gastritis and acid reflux usually affect the upper abdomen and may bring burning or nausea. Gallstones more often cause pain higher on the right, so location alone cannot provide a diagnosis.

Record when the pain began, where it sits, what you ate, and whether bowel movements, vomiting, fever, or urinary symptoms occur. Sip fluids if you can keep them down and choose light meals while symptoms settle. Avoid alcohol and foods that clearly worsen discomfort. Arrange medical advice if the pain persists, returns, or changes your bowel pattern; a clinician can decide whether an examination or tests are needed.

Seek urgent care for severe or rapidly worsening pain, a hard or markedly tender abdomen, repeated vomiting, blood in vomit or stools, black stools, faintness, fever with deterioration, or inability to pass stool or gas. Pregnancy, recent abdominal surgery, or significant immune problems lower the threshold for prompt assessment.

Ask which symptoms fit a digestive infection, bowel inflammation, or constipation; whether medicines or foods could be contributing; and what changes mean you should return urgently.