Procedure prep
Fasting Before Gallbladder Surgery
Gallbladder removal (cholecystectomy) is done under general anesthesia, so standard fasting applies.
Medically reviewed by
Dr. Saurabh Shukla, MBBS, DNB Anesthesiology
· Last updated June 2026
Fasting for this procedure
Stop solid food and milk about 8 hours before, a light meal about 6 hours before, and clear liquids about 2 hours before your hospital arrival time. A general anesthetic needs an empty stomach.
→ Get your exact fasting times with the calculator
Medicines to check
- Blood thinners (aspirin, clopidogrel, warfarin, Eliquis, Xarelto) — see medications to stop.
- Diabetes medicines & insulin — they need a plan. See diabetes tablets.
- GLP-1 (Ozempic, Wegovy, Mounjaro) — tell your team. See the GLP-1 guide.
- Blood pressure medicines — confirm which to take with a sip of water and which to hold.
When this surgery may be delayed
- Fever, a new cough/cold, or a chest infection
- Vomiting or diarrhea
- Very high blood pressure or blood sugar
- You ate or drank outside your fasting window
- A new gallbladder attack with fever (may need urgent care)
Reports & documents to carry
- Photo ID and insurance card
- A written list of all your medicines and doses
- Any blood tests, ECG, or scans your team asked for
- Consent forms or referral letters, and allergy details
- Ultrasound or scan reports of your gallbladder
- A ride home (often day-care or one night)
What to ask your anesthesia team
- Will I have general anesthesia, spinal/regional, or sedation?
- Which medicines do I take or hold on the morning of surgery?
- When can I eat and drink afterward?
- Will I go home the same day, and who can drive me?
Your prep checklist
Tick things off as you sort them — saved on this device only, nothing is sent anywhere.
A general guide — your hospital's own instructions always come first.
Frequently asked questions
How long do I fast before gallbladder surgery?
Usually solids stop about 8 hours before and clear liquids about 2 hours before your hospital arrival time, because the operation is done under general anesthesia. Follow your team's exact instructions.