Word! Canker Sore
Say: KAN-kur soar
This is a small mouth sore that's a big pain. Canker sores are open sores that have a white or yellowish coating and are usually about ¼ of an inch across. You might find them on the inside of your lips and cheeks, at the base of your gums, and on or under your tongue.
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
© 1995-2022 KidsHealth ® All rights reserved. Images provided by iStock, Getty Images, Corbis, Veer, Science Photo Library, Science Source Images, Shutterstock, and Clipart.com