Gallstones are solid pieces of material that form in the gallbladder, a small organ under the liver. They are usually made of cholesterol or bilirubin, and can range in size from a grain of sand to a ping pong ball. Gallstones can cause sudden pain if they block the bile ducts, and can lead to complications if left untreated. 1 2 3 Treatment usually involves removing the gallbladder. 1 2 4

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Summary Gallstones are pieces of solid material that form in your gallbladder , a small organ under your liver. If you have them, you might hear your doctor say you have cholelithiasis. Your gallbladder stores and releases bile, a fluid made in your liver, to help in digestion
Gallstones: Picture, Symptoms, Types, Causes, Risks, Treatments - WebMD

Summary Gallstones are hard, pebble-like pieces of material, usually made of cholesterol or bilirubin, that develop in your gallbladder. When gallstones block your bile ducts, they can cause sudden pain, which means you need medical attention right away. If left untreated, they can cause complications.
Gallstones | NIDDK - National Institute of Diabetes and Digestive and ...

Summary Gallstones form when bile stored in the gallbladder hardens into stone-like material. Too much cholesterol, bile salts, or bilirubin (bile pigment) can cause gallstones. When gallstones are present in the gallbladder itself, it is called cholelithiasis.
Gallstones | Johns Hopkins Medicine

Summary Gallstones are hardened collections of bile materials that develop in your gallbladder. They can be as small as a grain of sand or as big as a ping pong ball. Most don’t cause any problems, but they can cause problems if they get loose and travel into your bile ducts.
Gallstones (Cholelithiasis): Symptoms, Causes & Treatment

Summary Gallstones are deposits of digestive fluid made of solidified substances found in bile, like cholesterol. They are common and may or may not produce symptoms. People with symptoms usually need to have their gallbladders taken out.
Gallstones: Symptoms, Causes, Treatment, and More - Healthline

Gallstones are hardened bits of bile that form inside the gallbladder. Bile makes it easier for you to digest fat. It also contains some waste products, including cholesterol and bilirubin,…
Gallstones: Symptoms, diagnosis and treatment - Harvard Health

Gallstones are small stones, usually made of cholesterol, that form in the gallbladder. In most cases, they do not cause any symptoms and do not need to be treated. Symptoms…
Gallstones - NHS

Gallstones are hardened deposits of digestive fluid that can form in your gallbladder. Your gallbladder is a small, pear-shaped organ on the right side of your abdomen, just beneath your…
Gallstones - Symptoms and causes - Mayo Clinic

A gallstone is a stone formed within the gallbladder from precipitated bile components. [2] The term cholelithiasis may refer to the presence of gallstones or to any disease caused by…
Gallstone - Wikipedia

Gallstones that do not block your bile ducts do not cause symptoms. When you develop gallstones that block your bile ducts, bile builds up in your gallbladder, causing a gallbladder …
Symptoms & Causes of Gallstones | NIDDK