canker sore

• Pequena úlcera dolorosa que aparece dentro da boca, na língua ou na parte interna dos lábios, geralmente causada por estresse, trauma ou certos alimentos.

A small, painful ulcer or lesion that appears inside the mouth, on the tongue, or on the inner lips, often caused by stress, injury, or certain foods.

1. Small mouth ulcerB1formal

   A small, painful ulcer that appears inside the mouth, on the tongue, or on the inner lips, often caused by stress, injury, or certain foods.

   Úlcera aftosa

   • I got a canker sore after eating too much citrus fruit.
   • The dentist recommended a special gel to heal the canker sore.
   • Stress often triggers a canker sore for her.