Signs and Symptoms
Aphthous ulcers can affect people of any age. Frequency of aphthous ulcers is reported to be more in females as compared to males. Most commonly aphthous ulcers are seen on the lining of cheeks, tongue, lips and roof of mouth. Aphthous ulcers usually begin with a tingling or burning sensation at the site of the future aphthous ulcer. In a few days, they often progress to form a red spot or bump, followed by an open ulcer.
The aphthous ulcer appears as a white or yellow oval with an inflamed red border. Sometimes a white circle or halo around the lesion can be observed. The gray, white, or yellow area within the red boundary is due to the formation of layers of fibrin, a protein involved in the clotting of blood. The ulcer, which itself is often extremely painful, especially when agitated, may be accompanied by a painful swelling of the lymph nodes below the jaw; another symptom is fever. A sore on the gums may be accompanied by discomfort or pain in the teeth. Canker sores are very sensitive to spicy foods, and, if secondary infection occurs in canker sores, then antibiotics may also be required to treat it.
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