Digestive diseases refer to a range of conditions that affect the gastrointestinal tract, which includes organs like the stomach, intestines, and esophagus. These diseases can cause symptoms such as abdominal pain, bloating, and changes in bowel habits. Common digestive diseases include gastroesophageal reflux disease (GERD), irritable bowel syndrome (IBS), and Crohn's disease. These conditions can result from various factors, including genetics, diet, and lifestyle choices. Diagnosis often involves medical history, physical examinations, and tests like endoscopies or imaging studies. Treatment may include medications, dietary changes, or, in some cases, surgery to manage symptoms and improve quality of life.