For esophagitis, we generally recommend that patients visit the department of gastroenterology. As the name suggests, esophagitis refers to inflammatory changes in the esophagus, which can have many causes such as diet, medications, and acid reflux, among others. Endoscopy is the gold standard for diagnosing esophagitis; under endoscopy, we can observe congestion, edema, and even erosions in the esophageal mucosa. Severe esophagitis can also present as ulcerations. Clinically, most cases of esophagitis present with heartburn and acid reflux, especially heartburn, which is characterized by a burning pain in the esophageal area. This is usually related to diet and symptoms can worsen after eating, leading most patients to seek care from a gastroenterologist. Additionally, a small portion of patients may experience other gastrointestinal symptoms such as burping and nausea. Thus, it is recommended for patients with esophagitis to undergo a thorough endoscopic examination at a gastroenterology clinic.