Lying down and feeling a hard lump in the stomach that moves is considered to be caused by indigestion, gastrolithiasis and other diseases, and requires targeted treatment under the guidance of the doctor, such as medication, surgery and so on. 1. indigestion: indigestion when food accumulates in the stomach, resulting in lying feeling hard lumps in the stomach, will move; can be used under the guidance of the doctor domperidone, mosapride and other gastric motivation drugs, some patients can also be used to inhibit the secretion of gastric acid omeprazole, lansoprazole and other drugs to treat. 2. Gastrolithiasis: endoscopy and other related examinations need to be perfect to be clear, can be used under the guidance of the doctor, such as omeprazole and other drugs to reduce the damage of gastric stone on the intestinal mucosa, but also endoscopic lithotripsy and lithotripsy and other related treatments. Surgery should be considered in case of gastrointestinal perforation and mechanical intestinal obstruction. Patients who experience lying down feeling a hard lump in the stomach that moves are advised to go to the hospital and ask the doctor to make a judgment.