Stomach pain after eating can have various causes. Common reasons include food allergies or intolerances, indigestion, eating too much or too fast, gastritis (inflammation of the stomach lining), gastroesophageal reflux disease (GERD), irritable bowel syndrome (IBS), gallstones, peptic ulcers, and other digestive disorders. These conditions may cause symptoms like bloating, cramping, nausea, heartburn, or sharp pain following meals. Eating habits such as overeating or eating quickly can also cause stomach discomfort because the stomach stretches and extra air is swallowed, leading to bloating and gas. Food intolerances to dairy, gluten, or other ingredients may trigger pain due to the body's inability to properly digest them. More serious causes like pancreatitis, inflammatory bowel disease (IBD), or stomach ulcers should be considered if the pain is persistent, severe, or accompanied by other symptoms like vomiting or weight loss. If stomach pain after eating is frequent or worsening, medical evaluation is recommended to identify and treat the underlying cause appropriately.