Acid reflux is referred to a condition when you suffer from some irritation in the stomach, esophagus or heart region in your chest due to acid from the stomach traveling towards esophagus. Th condition is accompanied by some symptoms like heartburn, regurgitation, chest pain, dysphagia or difficulty in swallowing, hoarseness and others. To knowwhat is acid reflux and its causes its recommended that one should seek immediate medical attention in case of acid reflux to know the exact cause of it. Because acid reflux may also be caused due to some ulcers in the stomach. So a proper diagnosis is necessary to know the exact reason of the ailment for effective treatment.