Health encyclopaedia - Alphabetical Topic List

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Causes of Gallstones

Gallstones occur when the liver produces bile that is saturated with dissolved substances and has an excess of cholesterol in it. This may be caused by a relative reduction in bile salts.

Excessive cholesterol may be due to factors such as:

  • A high cholesterol diet
  • Advancing age
  • Excessive refined dietary carbohydrates such as white bread, cakes, and low-fibre cereals
  • The use of oral contraceptives
  • A genetic disorder featuring excessive cholesterol in the blood (hypercholesterolaemia)
  • Liver disease that reduces the levels of bile salts.