Acid reflux can potentially lead to swollen gums. Mild or occasional acid reflux does not usually lead to swollen gums; if acid reflux is severe and stomach acid refluxes into the mouth, the stomach acid will stimulate the gums, and due to the corrosion of the stomach acid, an inflammatory reaction of the gums is possible, which can lead to swollen gums and ulcers. There are many reasons for swollen gums, such as gingivitis caused by plaque irritation, or diseases such as apical periodontitis caused by dental caries. Usually eat a small amount of food, to light, pay attention to oral hygiene. Acid reflux is a gastrointestinal disease, it is recommended to go to the gastroenterology department for further diagnosis and treatment; swollen gums, it is recommended to go to the hospital stomatology department for further treatment.