Gallstones are common. There are usually no symptoms, so you may not know you have them.

You may be more likely to get gallstones if:

• you're over 40 years old
• you're a woman
• you're living with obesity
• you have a diet that's high in fat and low in fibre
• you've lost weight quickly – for example, through weight loss surgery
• you have a condition such as diabetes or Crohn's disease