The reliable conditions for diagnosing gallbladder stones are clinical symptoms, ultrasound and CT. 1. Clinical symptoms: Diagnosis of gallbladder stones is based on the patient’s clinical symptoms. Patients with gallbladder stones may often experience abdominal pain, which mainly manifests as spasmodic pain in the epigastrium that deepens and radiates to the back. The symptoms of biliary colic after a full meal or lying down after overexertion may also be gallbladder stones. 2. Ultrasound: ultrasound is usually the first choice for diagnosing gallbladder stones when patients have spasmodic abdominal pain, biliary colic and other clinical symptoms. Ultrasound can diagnose gallbladder stones if it shows a strong echogenic light mass in the cystic cavity, which can be moved with changes in body position, and most of them will be accompanied by posterior acoustic shadows. 3. CT: If the patient has pain in the right upper abdomen, the patient can be examined by CT, and its photo can clearly show the location, color, expansion and atrophy changes of the gallbladder, so as to clearly examine the disease. In addition, there are other ways to diagnose gallbladder stones, and it is recommended that patients under the guidance of the doctor to carry out the appropriate examination.