Gallbladder Pain Location. The gallbladder is a pear-shaped, small organ on the right side of the abdomen, just underneath the liver. Location of gallbladder pain includes the right shoulder, between the shoulder blades, center of the abdomen below the breast bone.allbladder Pain Location. The gallbladder is a pear-shaped, small organ on the right side of the abdomen, just underneath the liver. Location of gallbladder pain includes the right shoulder, between the shoulder blades, center of the abdomen below the breast bone.