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A 25-year-old female asked:

Hi i have negative std check & neg blood work done no hiv but why do i get month to month mouth ulcers? is there a underlying problem? what can i do?

4 doctor answers9 doctors weighed in
Dr. Shawn Murray
Dentistry 15 years experience
Oral Lesions: There are a number of things that can cause ulcers and/or lesions in the mouth. It's best to go to the dentist to do a thorough evaluation and diagnosis.
Dr. Hunter Handsfield
Infectious Disease 53 years experience
Canker sores, no HIV: By far the most common cause of recurrent mouth ulcers is aphthous stomatitis, the medical name for canker sores. They do not indicate any underlying health problem. I'll bet canker sores are thousands of times more common than oral sores from HIV! And HIV testing always overrules symptoms. See your doctor or dentist if the oral sores continue, but for sure you don't have HIV. Best wishes.
Dr. Sandra Eleczko
Dentistry 36 years experience
Mouth ulcerations: See a d mist about your mouth ulcers. The most commonly occurring ulceration are canker sores. They are associated with stress, monthly hormonal changes, trauma, or sensitivity to certain substances. Your dentist can help you. Good luck.
Dr. Paul Grin
Pain Management 36 years experience
Canker sores: is the most common oral lesions. Most ulcers, infections will clear up by themselves within a week or two. You should see your GP or dentist if the ulcer gets worse or lasts for longer than 2 weeks. Best of luck.

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Last updated May 24, 2015

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