Symptoms:

• Bad breath
• Fever
• General discomfort, uneasiness, or ill feeling (malaise)
• Sores on the inside of the cheeks or gums
• Very sore mouth with no desire to eat

Signs and tests:

An examination of the mouth shows small ulcers. These ulcers are similar to mouth ulcers caused by other conditions. Your health care provider may consider other conditions if there are signs of a cough, fever, or muscle aches.

Normally, no special tests are needed to diagnose gingivostomatitis. However, the doctor may take a small piece of tissue from the sore to check for a viral or bacterial infection. This is called a culture. A biopsy may occasionally be done to rule out other types of mouth ulcers.