Guides · 10 November 2026 · 6 min read

Quitting vaping before surgery

You have a procedure booked and you vape. Do you need to stop, how far ahead, and what do you tell the team? Here is the practical version, with the honest limits of the evidence.

The short version

• Tell your surgeon and anaesthetist you vape or use cannabis. It changes how they plan the anaesthetic and recovery. They hear it daily and do not judge.
• Nicotine tightens blood vessels and can slow wound healing. Stopping earlier is better, and even stopping close to the date can help.
• The strongest research is on smoking cigarettes. Vaping research is newer, so advice is cautious and borrowed partly from smoking.
• Follow your own team's instructions over any website, including this one.

Why it matters

Surgery is a controlled injury and healing needs good blood flow and oxygen. Nicotine, whatever the delivery, narrows small blood vessels and raises heart rate and blood pressure. For smokers, studies link continued smoking to more wound infections, poorer healing and more breathing problems after anaesthesia. Smoke also carries carbon monoxide, which vapour does not, so vaping is probably less harmful to healing than smoking. Probably is not the same as harmless, and nicotine alone is enough for surgeons to ask you to stop.

Cannabis matters too, especially smoked or vaped. It can interact with anaesthetic drugs, affect the heart rate, and irritate the airway. Tell the anaesthetist how much you use and how often.

How far ahead should you stop?

For smoking, many guidelines suggest stopping around four weeks before surgery, with benefits building over that time. Stopping earlier is better, but stopping at any point before the operation is still worth it. Do not skip quitting because the date is close. Ask your surgical team for their own cut-off, since orthopaedic, plastic, dental and bariatric teams each have strict views. Some, such as plastic surgeons doing skin flaps or cosmetic work, may refuse to operate on someone using nicotine in any form.

One catch: if the team plans a nicotine test before surgery, nicotine replacement can show up on it. Ask what they test for before you start patches. Some teams accept replacement because it is better than vaping, others want a clean result.

Planning a quit around the date

• Pick a stop date well before the operation, and keep a buffer for a slip or a second attempt.
• Plan for withdrawal. Days two to three are the hardest. Do not make them the days just before surgery if you can avoid it.
• Ask about replacement. Patches or gum are usually acceptable and can be better than vaping through the hospital stay. Ask the anaesthetist or pharmacist.
• Plan the hospital stay. You may be nil by mouth, in pain, bored and anxious, all of which are cravings triggers. Ask about a patch while admitted.
• Plan recovery. Staying off nicotine afterwards matters as much as before, since healing continues for weeks.

Vaping and cannabis on the day

Follow the fasting and medication instructions exactly. Do not vape on the way in, and leave devices at home, since many hospitals bar them. If you use cannabis daily, abrupt stopping brings withdrawal of its own: sleep trouble, irritability, sweats, and low appetite, so tell the team rather than hiding it. They can manage nausea and sleep better when they know.

When to speak to your doctor early

• You have heart disease, asthma, COPD, sleep apnoea or diabetes.
• You take medication for anxiety, depression or ADHD, since doses can need adjusting after quitting.
• The operation is soon, within days, and you are unsure what to do. Call the pre-admission clinic. They would rather you ask.
• You are pregnant.

A reason that sticks

A fixed date and a medical reason make quitting easier for many people. Surgery gives you both. Use it as a clear line: this is when the old routine ends.

Questions to ask at pre-admission

Write these down before the appointment: What is your cut-off for nicotine and cannabis? Do you test for nicotine, and does replacement count? Can I have a patch while I am admitted? Who do I call if I slip before the date? Having the answers in writing removes guesswork at the moment cravings are loudest, and shows the team you are taking the plan seriously.

You do not need to quit perfectly before surgery. You need to quit as early as you can, and tell the people looking after you the truth.

General information for adults 18+, not medical advice. Speak to a doctor, dentist or pharmacist about your own situation.

Next: a 7-day plan to quit vaping