If there is gallbladder cancer, usually an ultrasonography of the liver and gallbladder or the upper abdomen can detect it. Conditions such as gallbladder cancer or liver cancer are often initially discovered and diagnosed through ultrasound. Of course, the final confirmation of diagnosis is usually achieved through pathological examination after surgery. However, in terms of initial diagnosis, it is very common to identify these conditions through ultrasound. Gallbladder cancer typically presents certain characteristic changes, such as obvious thickening of the gallbladder wall, extensive thickening including sclerosis, and significant soft tissue mass growth extending to and adhering to the liver, which are strong indicators of gallbladder cancer. Additionally, a large polyp may be seen inside the gallbladder, and surgical removal at this stage may diagnose early gallbladder cancer.