What causes canker sores?

ByBrian “Weence” Bateman

The exact cause is unknown, but factors include injury, stress, hormonal changes, food sensitivities, and certain medical conditions.

The exact cause is unknown, but factors include injury, stress, hormonal changes, food sensitivities, and certain medical conditions.

Brian “Weence” Bateman is a health and medical writer who covers public health updates, healthcare policy, and medical developments affecting communities across the United States. He works closely with dentists and healthcare providers and focuses on making complex medical information clear, accurate, and useful for everyday readers.