When gallbladder cancer is diagnosed early, it is often found incidentally.
At the current time, there isn’t a screening test for gallbladder cancer.
Risk factors may include:
American Cancer Society.

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What Are the Risk Factors for Gallbladder Cancer?
American Society of Clinical Oncology.
Cancer.Net Gallbladder Cancer: Symptoms and Signs.
Kanthan R, Senger J, Ahmed S, Kanthan S. Gallbladder Cancer in the 21st Century.Journal of Oncology.
Gallbladder Cancer Treatment (PDQ).