Slightly full gallbladder can be seen in the fasting state, cholecystitis, gallbladder stones and other diseases, you should consult a doctor in a timely manner, under the guidance of the doctor to improve the examination, a clear diagnosis. 1. The function of the gallbladder is mainly to store bile. If the gallbladder is slightly full during ultrasound examination of the abdomen in the fasting state, this is due to the fact that the bile is not excreted, which is a normal situation. 2. Slightly full gallbladder can also be seen in pathological changes, such as cholecystitis, resulting in poor gallbladder contraction function or stones caused by blockage of the gallbladder ducts, bile excretion obstacles, resulting in bile siltation and concentration, manifested as pain in the right epigastric region, nausea, vomiting, etc., which can be radiated to the back. Therefore, slightly full gallbladder can be seen in physiological state and pathologic changes, if accompanied by nausea, pain and other discomforts, should consult a doctor in time to clarify the diagnosis.