The lower right side of the chest, the most common is the stomach, duodenum, if a little to the right, is the pancreas, liver, gallbladder, if there is a pain in the lower right side of the chest, the first thing to consider is the gastric, duodenal diseases, for example, acute gastritis or chronic gastritis. Gastric and duodenal ulcers or sudden severe pain can also be caused by perforation of the stomach or duodenum, pancreatitis or cholecystitis. If it is pancreatitis, you can usually take a blood test, blood amylase to confirm the diagnosis, if it is cholecystitis, you can go to do the ultrasound of the gallbladder to determine the exclusion of visceral problems, if there is a pain in the lower right side of the chest, it may also be caused by aseptic inflammation of the costal cartilage.