Right upper abdominal pain is commonly associated with gastrointestinal diseases, liver and gallbladder diseases, and right kidney stones. 1. Gastrointestinal diseases: duodenal ulcer can cause pain in the right upper abdomen, which is directly related to dietary factors and often caused by improper diet. Inflammation of the right half of the colon can also cause discomfort, fullness and pain in the right upper abdomen. It can be further diagnosed by gastroscopy. 2. Liver and gallbladder diseases: Liver abscess, viral hepatitis, fatty liver, etc. often lead to pain in the liver area, i.e., right upper abdominal pain, sometimes accompanied by jaundice, fatigue and other symptoms. Gallstones pain is often in the right upper abdomen, stones block the gallbladder to empty the bile pipe will cause pain, if secondary inflammation will appear fever, jaundice and other symptoms. Abdominal ultrasound and blood biochemistry tests can be performed to assist in the diagnosis. 3. Kidney stones: Kidney stones on the right side may cause pain in the kidney area and the right upper abdomen, which is mostly colicky. When right upper abdominal pain occurs, it is recommended that patients go to regular hospitals in time to improve the relevant examinations, under the guidance of physicians to clarify the diagnosis and standardize the treatment, so as to avoid delaying the condition leading to adverse reactions.