Gallstones: Symptoms, Ultrasound Diagnosis, and Treatment Choices

Gallstones are hardened deposits that form in the gallbladder and may cause no symptoms or may lead to pain after meals, nausea, and digestive discomfort. Ultrasound is usually the first test, and treatment depends on symptoms, stone location, and overall health.

Overview

Gallstones are small, stone-like deposits that develop inside the gallbladder, a pear-shaped organ located under the liver. The gallbladder stores bile, a digestive fluid made by the liver that helps the body break down fats. When the balance of substances in bile changes, crystals can form and gradually grow into stones.

Gallstones vary widely in size. Some are as small as grains of sand, while others may be larger. A person may have one stone or many. The two main types are cholesterol stones, which are the most common, and pigment stones, which are related to bilirubin, a substance produced when the body breaks down red blood cells.

Many people with gallstones never feel unwell and discover them during an ultrasound done for another reason. These are called silent gallstones. Others develop symptoms when a stone blocks the normal flow of bile, especially after a meal. In these cases, a doctor may recommend treatment to prevent repeated attacks and related complications.

Gallstone Symptoms

Gallstones often cause no symptoms until they block the outlet of the gallbladder or a bile duct. The most typical symptom is biliary colic, which is a steady pain in the upper right part of the abdomen. The pain may also be felt in the center of the upper abdomen, the right shoulder, or the back between the shoulder blades.

Symptoms commonly begin after eating, especially after a rich or fatty meal, because the gallbladder contracts to release bile. The pain may build over minutes and last from 30 minutes to several hours. It may be accompanied by nausea, vomiting, bloating, indigestion, or a feeling of fullness in the upper abdomen.

Symptoms that suggest inflammation or blockage need prompt medical assessment. These include pain that lasts longer than several hours, fever or chills, yellowing of the skin or eyes, dark urine, pale stools, or repeated vomiting. These signs may point to conditions such as acute cholecystitis, bile duct obstruction, or pancreatitis, all of which require medical care.

Causes and Risk Factors

Gallstones form when bile contains too much cholesterol or bilirubin, or when the gallbladder does not empty properly. If cholesterol levels in bile are higher than bile salts can dissolve, cholesterol crystals may develop. Pigment stones may form when bilirubin levels are increased, such as in some liver or blood conditions.

Certain factors increase the chance of developing gallstones. These do not mean a person will definitely have gallstones, but they can affect risk. Some risk factors are related to hormones and metabolism, while others are related to lifestyle, weight changes, or medical history.

• Female sex, pregnancy, and estrogen exposure can increase cholesterol in bile.
• Increasing age and family history may raise the likelihood of gallstones.
• Overweight, obesity, and metabolic conditions can contribute to bile imbalance.
• Rapid weight loss, fasting, or very low-calorie diets may reduce gallbladder emptying.
• Diabetes, liver disease, and some blood disorders may be associated with gallstones.

A balanced approach to weight management is important. Losing weight gradually under medical or nutritional guidance can reduce gallstone risk compared with rapid, unsupervised weight loss.

Ultrasound Diagnosis and Other Tests

Abdominal ultrasound is usually the first and most important imaging test for suspected gallstones. It is noninvasive, does not use radiation, and can show stones inside the gallbladder, thickening of the gallbladder wall, and sometimes widening of the bile ducts. The test is typically performed with a handheld probe placed over the abdomen.

Before an ultrasound, patients may be asked not to eat for several hours so the gallbladder is easier to see. During the examination, the clinician may apply gentle pressure in the upper right abdomen. If this reproduces pain while the gallbladder is being viewed, it can support the diagnosis of gallbladder inflammation.

Blood tests may be added to look for infection, inflammation, liver irritation, or pancreas involvement. If a stone is suspected in the common bile duct, additional imaging may be needed. Options can include magnetic resonance cholangiopancreatography, endoscopic ultrasound, or computed tomography in selected situations.

In some cases, an endoscopic procedure called ERCP is used when bile duct stones are strongly suspected or confirmed. ERCP can diagnose and treat duct stones during the same procedure, but it is not usually the first test for simple gallbladder stones because it carries specific risks and is reserved for appropriate cases.

Treatment Choices

Treatment depends on whether gallstones are causing symptoms, where the stones are located, and the person’s overall health. Silent gallstones often do not require immediate treatment. A doctor may recommend observation, along with advice on recognizing symptoms that should prompt reassessment.

For repeated gallstone pain or gallbladder inflammation, the most common treatment is gallbladder removal, called cholecystectomy. This is often done with laparoscopic surgery, using small incisions and a camera. The liver continues to make bile after the gallbladder is removed, and most people digest food normally, although some may notice temporary changes in bowel habits.

If stones are present in the common bile duct, they usually need to be removed because they can block bile flow. ERCP may be used to open the duct and extract stones. Surgery to remove the gallbladder may follow, depending on the clinical situation, to reduce the chance of future stones passing into the duct.

Medication to dissolve cholesterol stones is used only in selected cases, such as when surgery is not suitable. It may take months or longer to work, is not effective for all stones, and stones can return after treatment stops. For this reason, it is less commonly used than surgical treatment for symptomatic gallstones.

Prevention and Self-care

Not all gallstones can be prevented, especially when age, genetics, pregnancy, or medical conditions play a role. However, healthy daily habits may reduce risk and support overall digestive health. The goal is to keep bile flow steady and avoid sudden metabolic changes that can encourage stone formation.

A practical prevention plan includes regular meals, gradual weight management, and a balanced diet rich in vegetables, fruits, whole grains, lean proteins, and healthy fats. Very restrictive diets or skipping meals for long periods may reduce gallbladder emptying. People planning major weight loss, including bariatric surgery, should discuss gallstone prevention with their healthcare team.

For people who already have gallstones, self-care focuses on symptom awareness and avoiding personal triggers. Some patients notice that very fatty or heavy meals bring on pain, so smaller, lower-fat meals may help reduce discomfort while awaiting medical advice. Self-care does not remove stones, but it can support comfort and help patients recognize when they need medical assessment.

When to See a Doctor

A person should schedule a medical visit if they have repeated upper abdominal pain, nausea after meals, or discomfort that seems linked to fatty foods. A doctor can review symptoms, perform an examination, and arrange ultrasound or blood tests if needed. Early assessment helps distinguish gallstones from other causes of abdominal pain, such as reflux, ulcers, liver conditions, or pancreatitis.

Same-day or urgent medical care is recommended for severe or persistent upper abdominal pain, fever, chills, yellowing of the skin or eyes, dark urine, pale stools, confusion, fainting, or ongoing vomiting. These symptoms do not always mean a serious complication is present, but they should be checked promptly and safely.

Patients diagnosed with gallstones should ask their doctor whether observation, surgery, or additional bile duct evaluation is most appropriate for their situation. The decision should consider symptoms, test results, other medical conditions, and personal preferences. Acibadem International’s multidisciplinary specialists and JCI-accredited hospitals diagnose and treat gallbladder and bile duct conditions for international patients, including cases requiring imaging, endoscopy, or surgery.

Frequently asked questions

Can gallstones go away on their own?

Gallstones usually do not disappear on their own. Some small stones may pass out of the gallbladder, but this can also cause pain or blockage. If gallstones are not causing symptoms, a doctor may simply monitor them rather than treat them immediately.

What does gallstone pain feel like?

Gallstone pain is often a steady ache or pressure in the upper right abdomen or upper middle abdomen. It may spread to the right shoulder or back and can occur after eating, especially after fatty meals. Pain that lasts several hours or comes with fever, jaundice, or vomiting needs prompt medical attention.

Is ultrasound enough to diagnose gallstones?

For many patients, abdominal ultrasound is enough to confirm gallstones in the gallbladder. It can also show signs of inflammation or bile duct enlargement. If a duct stone is suspected, the doctor may recommend blood tests or additional imaging such as MRCP or endoscopic ultrasound.

Do all gallstones require surgery?

No. Gallstones that are found by chance and do not cause symptoms often do not need surgery. Surgery is more commonly recommended when gallstones cause repeated pain, gallbladder inflammation, or related complications.

Can a person live normally without a gallbladder?

Yes, most people live normally after gallbladder removal. The liver continues to produce bile, which flows directly into the intestine. Some people notice temporary loose stools or digestive changes, and these often improve with time and dietary adjustments.

What foods should be avoided with gallstones?

There is no single gallstone diet that works for everyone. Some people find that large, greasy, or very fatty meals trigger symptoms, so smaller balanced meals may be more comfortable. A doctor or dietitian can provide individualized advice, especially for people with diabetes, pregnancy, liver disease, or planned weight loss.

References

• World Gastroenterology Organisation
• National Institute of Diabetes and Digestive and Kidney Diseases
• American College of Gastroenterology
• European Association for the Study of the Liver
• Society of American Gastrointestinal and Endoscopic Surgeons

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.