Oral Biopsy

What Is a Biopsy?

An oral biopsy is a quick procedure where a small piece of tissue is taken from your mouth so it can be looked at under a microscope. This helps your dentist make an accurate diagnosis.

In some cases, the biopsy also removes the entire lump or problem area—this is usually possible if the area is small.

Why Is It Done?

A biopsy helps:

• Confirm what the problem is
• Decide the best treatment
• Remove small lumps in some cases

Before the Biopsy

• Eat and drink as normal unless you’ve been told otherwise
• Take your usual medications unless your doctor has advised you to stop

How Is the Biopsy Done?

• A local anaesthetic is used so you don’t feel pain
• Sometimes a numbing gel is used first, followed by an injection (like at the dentist)
• Once the area is numb, a small piece of tissue is removed
• The area may need stitches, usually the dissolving kind that disappear in about 10 days
• The entire process takes about 10–15 minutes
• You can normally go home right after and may drive or use public transport

What to Expect After the Biopsy

When You Get Home

• Avoid hot food and drinks while your mouth is still numb (you could accidentally burn or bite yourself)
• As the anaesthetic wears off, the area may feel sore—paracetamol or other painkillers can help
• Some swelling or bruising is normal
• A little bleeding may occur—apply pressure with clean gauze or a rolled-up handkerchief for up to 20 minutes if needed
• Your saliva may be slightly blood-stained for the first day

Caring for the Area

• Don’t rinse your mouth or spit vigorously for the rest of the day
• Brush your teeth as normal, even near the biopsy site
• Avoid smoking, vaping and alcohol for the rest of the day
• Starting the next day, rinse your mouth gently with warm salty water after meals for 7 days
• You’ll be given written aftercare instructions and contact information for any concerns

When Can I Go Back to Work?

• Most people feel fine to return to work the same day
• Avoid strenuous activities that may cause bleeding for the rest of the day

If you have any questions or problems after your biopsy, don’t hesitate to contact the practice.