Gastric cramps and biliary colic are both acute abdominal pains, but they occur in two different organs, caused by different diseases, and occur for various and different reasons. Both organs are hollow organs, and the pain is caused by a strong contraction of the smooth muscles, resulting in a spasm that increases the intraluminal pressure. The former pain is commonly referred to as “stomach cramps” and the latter pain as “biliary colic”. ”Gastric cramps” are most often caused by acute inflammation and perforation of the stomach caused by bacteria and bacterial toxins, called “infectious gastritis”. Gastritis caused by different chemicals with strong acids and bases is called “corrosive gastritis”. In addition to pain in the upper and middle abdomen, these two conditions are often accompanied by vomiting and diarrhea. Without treatment, the pain cannot be relieved, and it is unlikely to end suddenly. In the case of gastric perforation, the pain is severe, vomiting and bowel sounds disappear. Although the pain is transiently relieved at the time of perforation, it will never be suddenly relieved; and several hours later, the abdominal pain will be re-exacerbated, and it will be aggravated by the flow of gastric contents into the abdominal cavity and the complication of peritonitis. Biliary colic occurs when gallstones are complicated by biliary colic, which can occur suddenly, but the pain can also disappear quickly. Because when stones float in the gallbladder and bile ducts, there are often no special symptoms, some patients with stones up to 2-3 cm have not had biliary colic, but some stones are not large, but often occur biliary colic, the reason for this, mainly because the stones move for some reason, causing obstruction of the bile ducts or gallbladder neck, the pain can be sudden and very intense. When a high-fat diet is consumed, the gallbladder contracts and pushes the stones into the neck of the gallbladder and the bile duct, causing stone impaction. The flow of bile is then impaired and the pressure in the gallbladder increases. The high pressure causes the gallbladder to expand or the bile ducts to dilate, and the gallbladder muscles keep contracting to squeeze out the stuck stones, making the pressure in the gallbladder and bile ducts higher, so the patient will feel severe pain, and this kind of biliary colic is easy to happen at night, because when people lie down to sleep, the stones will take advantage of the situation to slide into the bile ducts, and the pain may still occur after the gallbladder is removed.