Gastrointestinal disorders refer to a broad category of medical conditions that affect the digestive system, which includes the stomach, intestines, liver, and pancreas. These disorders can manifest in various ways, leading to symptoms such as abdominal pain, diarrhea, constipation, bloating, and nausea. Some common gastrointestinal disorders include irritable bowel syndrome (IBS), gastroesophageal reflux disease (GERD), Crohn’s disease, ulcerative colitis, and celiac disease.