The Rutherford Clinic

Gallstones

Sometimes, some of the watery fluid (bile) stored in the gallbladder hardens into pieces of stone-like material known as gallstones. Gallstones may vary from the size of a grain of sand to a golf ball and there may be one or hundreds of stones.

Gallstones can cause abdominal pain, fever and vomiting if they block the movement of bile into or out of the gallbladder.

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https://www.healthpoint.co.nz/private/gastroenterology-hepatology-liver/the-rutherford-clinic/