Yes, it is possible to have reflux that is not acid. Reflux is the regurgitation of stomach contents back up into the esophagus and mouth. This can be caused by a variety of things, including food, liquids, and acid. However, not all reflux is caused by acid. There are other types of reflux that can occur, such as bile reflux, which is caused by the regurgitation of bile from the small intestine into the stomach and esophagus. Bile reflux is usually caused by an obstruction in the intestines, such as a gallstone, tumor, or hernia. It can also be caused by certain medications or health conditions.
In addition to bile reflux, there is also non-acidic reflux, which is caused by the regurgitation of non-acidic substances, such as mucus, food particles, and saliva. Non-acidic reflux is typically caused by lifestyle factors, such as overeating, eating large meals, or lying down after eating. It can also be caused by certain health conditions, such as GERD (gastroesophageal reflux disease).
Non-acidic reflux can cause many of the same symptoms as acid reflux, such as heartburn, chest pain, and difficulty swallowing. However, it is important to note that non-acidic reflux does not cause the same damage to the esophagus as acid reflux does. Therefore, if you have reflux that is not acid, it is important to speak with your doctor about ways to help manage your symptoms.