What Causes Canker Sores?
7. Major Canker Sores
Another category of canker sores is major canker sores. As the name suggests, these are generally larger than minor canker sores. They will also likely penetrate deeper beneath the skin than minor canker sores will. They are also usually round in shape, and they can also have large, irregular edges.
Major canker sores are likely to be considerably more painful than minor sores are. This can make it even harder for the patient to be able to eat. Major canker sores will also take longer to heal than minor canker sores will. It can take up to 6 weeks for them to heal, and they can also leave scars after they have healed.
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