Angular cheilitis is a fairly common condition that causes inflammation in the corners of the mouth. More than 200,000 people each year contract some form, and all demographics are equally susceptible, though some risk factors can increase one's risk. Fortunately, angular cheilitis is curable and has many treatment options.
In some cases, angular cheilitis can develop spontaneously, but it usually develops due to excess saliva at the corners of the mouth. Repeatedly licking the lips to remove this excess can cause both non-infectious and infectious angular cheilitis. However, even failing to remove buildups of saliva can cause the condition.
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