Author: Vanessa Ngan, Staff Writer, An aphthous ulcer is an ulcer that forms on the mucous membranes. They are also called aphthae, aphthosis, aphthous stomatitis and canker sores. An aphthous ulcer is typically a recurrent round or oval sore or ulcer inside the mouth on an area where the skin is not tightly bound to the underlying bone, such as on the inside of the lips and cheeks or underneath the tongue.
What's The Difference Between A Canker Sore And A Cold Sore?
Cold Sores vs Canker Sores vs Chancres
Aphthous stomatitis is a common condition characterized by the repeated formation of benign and non-contagious mouth ulcers aphthae in otherwise healthy individuals. The informal term canker sores is also used, mainly in North America, although this may also refer to any mouth ulcers. The cause is not completely understood, but involves a T cell -mediated immune response triggered by a variety of factors. Different individuals have different triggers, which may include nutritional deficiencies , local trauma, stress, hormonal influences, allergies, or genetic predisposition. These ulcers occur periodically and heal completely between attacks. In the majority of cases, the individual ulcers last about 7—10 days, and ulceration episodes occur 3—6 times per year. Most appear on the non-keratinizing epithelial surfaces in the mouth i.
A-Z OF SKIN
The two strains of the herpes simplex virus cause both cold sores and genital herpes. Both cause a lifelong infection. Ask anyone who gets cold sores and they'll tell you how unpleasant these little sores and blisters can be.
A year-old woman presents with painful vulval ulcers and severe dysuria Figure. She has not been sexually active for the past three months and is otherwise well. She has no history of gastrointestinal disease. On examination, several superficial ulcers are visible that have a red areola and a sloughy yellow-green base measuring 3 to 5 mm. The lesions are located mainly on the labia minora, which are oedematous.