Can obesity cause gallstones?

Gallstones are hardened pieces of material that develop in the gallbladder. Excess body fat can alter the balance of substances in bile and may make the gallbladder empty less effectively. Many gallstones cause no symptoms, while a stone blocking a bile duct can produce sudden pain under the ribs on the right or in the upper abdomen, sometimes after a rich meal, with nausea or vomiting.

Similar pain can come from ulcers, reflux or other conditions. A clinician may use an examination, blood tests and an ultrasound to clarify the cause.

Book a medical review for repeated upper-abdominal pain, especially if it follows meals or travels to the back or right shoulder. Avoid very large or greasy meals while waiting if these reliably trigger discomfort, and keep hydrated.

If weight management is part of your care, aim for steady changes with professional support. Rapid weight loss can also encourage gallstone formation, so avoid crash diets. Do not take leftover pain medicine or gallstone remedies without checking whether they are suitable for you.

Seek urgent help for severe or persistent abdominal pain, fever or chills, yellow skin or eyes, dark urine, pale stools, repeated vomiting or marked tenderness. These signs can indicate inflammation or a blocked bile duct and should not be managed at home.

Ask whether your symptoms fit gallstones, whether an ultrasound or blood tests are needed, which foods are worth limiting, and how to manage weight safely if gallstones have been found.