Gallbladder cancer patients, if they experience vomiting, the causes primarily include two aspects. On one hand, vomiting may occur due to obstructive jaundice caused by gallbladder cancer. At this time, the patient may experience abdominal distension and poor digestion, which could lead to nausea and vomiting. For treatment, it is advisable to perform surgery as soon as possible to achieve therapeutic effects and prevention. On the other hand, for gallbladder cancer patients, vomiting should be taken seriously as it could be a sign of metastasis to other parts of the body, such as the gastrointestinal tract or liver. Therefore, for gallbladder cancer patients, it is important to conduct comprehensive examinations to rule out metastasis to other locations. If metastasis occurs, systemic chemotherapy may be necessary to achieve better suppressive effects.