Acid reflux from bending over may be caused by GERD, gastritis, or peptic ulcer. Reflux and heartburn are typical symptoms of GERD, mostly occurring about 1 hour after meals, and may be aggravated by lying down, bending over, or increased intra-abdominal pressure. Acid reflux also occurs when there is too much stomach acid and damage to the gastric mucosa causing peptic ulcer or gastritis, and the symptoms of acid reflux from bending over may occur. For the symptoms of excessive gastric acid secretion, you can follow the doctor’s instructions to use drugs to reduce gastric acid secretion, severe symptoms can be used proton pump inhibitors such as omeprazole, etc., less severe symptoms of histamine H₂ receptor antagonists such as famotidine. Omeprazole is contraindicated in those who are allergic to omeprazole, those with severe renal insufficiency, and infants and young children; omeprazole should not be combined with nelfinavir or atazanavir. It is prohibited for those who are allergic to famotidine, nursing and pregnant women. It is recommended that patients go to the hospital in time to improve the relevant examination, under the guidance of the doctor for medication.