Left chest pain can be a symptom of various gastrointestinal diseases such as indigestion, gastric reflux, and colorectal cancer. The stomach, pancreas, and spleen are all located under the left ribs, so pain in this area may stem from a gastrointestinal issue. Indigestion is characterized by discomfort in the upper abdomen just below the chest, with causes ranging from overeating to stomach infections. Symptoms include abdominal pain after eating, nausea, and bloating. Managing stress and eating small meals can help alleviate mild indigestion, which usually resolves within a week or two. However, persistent symptoms should prompt a visit to the doctor.

Gastroesophageal reflux occurs when stomach contents flow back into the esophagus, leading to a burning sensation under the left chest. Lifestyle changes such as avoiding spicy and fatty foods can help control symptoms, but if they persist, medical attention is necessary. Irritable bowel syndrome can cause severe abdominal pain, bloating, diarrhea, and constipation, with discomfort spreading to the left chest area. This condition can be managed through lifestyle changes and diet modifications.

Pancreatitis results from inflammation of the pancreas, often due to gallstones or excessive alcohol consumption. Symptoms include upper abdominal pain