A lot of gallbladder questions start in the same place: what does this organ actually do, and why does it cause pain? This short video walks through the basic anatomy and physiology of the biliary system -- the gallbladder, bile ducts, and how they connect to the liver and intestine.
Once you understand how bile is supposed to flow, the rest makes a lot more sense -- why gallstones form, why fatty meals trigger symptoms, and why removing the gallbladder is usually the right long-term fix rather than just treating individual attacks.
For more detail on symptoms, diagnosis, and what surgery actually involves, see our full guide to gallbladder disease.