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Overview
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Conditions
Sore
Canker sores

Canker sores

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Small, shallow, and painful lesions on the tongue, inner cheek, or at the base of the gums, usually with a white or yellow center surrounded by redness. They may occur spontaneously or after a minor injury such as a cheek bite. They usually heal in one to two weeks, but larger sores may persist for one to two months.

Dr. Geoffreysss Rutledgeee reviewed this

41 years experience

Is a type of:

Mouth disorders • Stomatitis • Sore

How long it usually lasts:

Short-term (lasts days to weeks)

How common it is:

Very common
Baby
0-2
Rare
Toddler
3-5
Common
Preteen
6-13
Very common
Teenager
14-18
Very common
Young adult
19-40
Very common
Middle-aged adult
41-60
Very common
Senior
60+
Very common

Body locations

Mouth, Head

Symptoms

White patches inside mouth
Soreness or burning inside of mouth
Blisters in the mouth
Sensitive gums
Mouth pain
Load more

Medications

Ratings show how effective doctors think these medications are at treating Canker sores
Tetracycline
2
3 reviews
Viscous lidocaine
2
1 review
Topical steroid
Amlexanox
Doxycycline
Load more

Other treatments

Mouthwash

Tests

Ferritin
Complete blood count
Wound or tissue culture

Risk factors

Personal

Stress

Related questions

A 47-year old asked:

Can canker sores bleed?

1 doctor answer • 2 doctors weighed in

A 20-year old female asked:

what causes canker sores?

1 doctor answer • 3 doctors weighed in

A 33-year old asked:

Why do canker sores bleed?

1 doctor answer • 1 doctor weighed in

A 42-year old asked:

Are canker sores permanent?

1 doctor answer • 1 doctor weighed in

A 40-year old male asked:

Why canker sores grow in size?

1 doctor answer • 3 doctors weighed in

A 45-year old asked:

can kisses cause canker sores?

1 doctor answer • 2 doctors weighed in

A 18-year old female asked:

Can citrus cause canker sores?

2 doctor answers • 3 doctors weighed in

A 43-year old asked:

How to know it is canker sores?

1 doctor answer • 3 doctors weighed in

A 35-year old asked:

What makes canker sores better?

1 doctor answer • 1 doctor weighed in

A 40-year old asked:

What's causing my canker sores?

1 doctor answer • 1 doctor weighed in

A 18-year old asked:

how do you treat canker sores?

2 doctor answers • 6 doctors weighed in

A 48-year old asked:

Home remedies for canker sores?

2 doctor answers • 2 doctors weighed in

A 42-year old asked:

So how do you heal canker sores?

2 doctor answers • 5 doctors weighed in

A 30-year old asked:

How to remove canker sores fast?

1 doctor answer • 1 doctor weighed in

A 46-year old asked:

Why do I get canker sores easily?

1 doctor answer • 5 doctors weighed in

A 31-year old asked:

Any good remedies for canker sores?

2 doctor answers • 5 doctors weighed in

A 35-year old asked:

How can I quickly cure canker sores?

1 doctor answer • 3 doctors weighed in

A 48-year old asked:

I was wondering are canker sores hard?

1 doctor answer • 2 doctors weighed in

A 19-year old female asked:

Why do I get reoccuring canker sores?

1 doctor answer • 4 doctors weighed in

A 35-year old asked:

What makes canker sores faster better?

1 doctor answer • 1 doctor weighed in

A member asked:

Do canker sores bleed if you pop them?

1 doctor answer • 1 doctor weighed in

A 39-year old asked:

What's to be done about canker sores fast?

1 doctor answer • 1 doctor weighed in

A 43-year old asked:

What are the ways to get rid of canker sores?

2 doctor answers • 3 doctors weighed in

A 32-year old asked:

Can I tell me how I can prevent canker sores?

2 doctor answers • 3 doctors weighed in

A 39-year old asked:

I now have canker sores after an operation ??

1 doctor answer • 1 doctor weighed in

A 34-year old asked:

How can I prevent canker sores from happening?

1 doctor answer • 1 doctor weighed in

A 48-year old asked:

Which are some good remedies for canker sores?

1 doctor answer • 3 doctors weighed in

A 45-year old asked:

What should i do to make canker sores go away?

1 doctor answer • 1 doctor weighed in

A 40-year old asked:

I have 6 painful canker sores! What should I do?

1 doctor answer • 2 doctors weighed in

A 23-year old asked:

What is the best way to get rid of canker sores?

1 doctor answer • 4 doctors weighed in

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