The right upper back is the liver and gallbladder. If pain or discomfort occurs, it should be considered a lesion of the liver or possibly the gallbladder. Generally, lesions of the gallbladder are more common, mainly gallbladder stones or gallbladder polyps, and can be accompanied by chronic or acute inflammation of the gallbladder. The pain is mainly in the right upper abdomen and is usually severe in nature, accompanied by some symptoms of the digestive tract, such as nausea and vomiting, the vomit is usually from the stomach, and can be accompanied by fever when the inflammation is severe. If you want to make a definite diagnosis, you can have an ultrasound examination of the gallbladder, which usually reveals stones in the gallbladder and inflammation of the gallbladder wall. If there is no inflammation in the gallbladder, tumors or nodules in the liver may be considered, and the liver may become distended and painful. Ultrasound of the liver can also detect the occupancy in the liver. If the ultrasound is not clear, enhanced CT of the liver may be needed for further examination.