<unk>  (also called perlèche, cheilosis, or<unk>  stomatitis) is an inflammatory lesion at the labial commissure or corner of the mouth and often occurs bilaterally. The condition manifests as deep cracks or splits. In severe cases, the splits can bleed when the mouth is opened and shallow ulcers or a crust may form. It usually occurs due to an underlying condition as the main cause. As the condition is generally mild, it has the propensity to go unnoticed for long periods of time. Identifying the underlying etiology is essential to decide the appropriate treatment. Altered structures of the mouth lead to an approximation of the lips which causes pooling of the saliva at the angles of the mouth. It also presents as part of syndromes, especially those related to micro-nutrient deficiencies. Therefore, even after diagnosis, further testing should be done to rule out any underlying abnormalities which could later turn more sinister. The condition itself is manageable, resolves within two weeks if treatment is initiated on time, and poses little to no risk to life. It rarely causes permanent disfigurement but it is notorious for recurrence if the contributing factors like oral health and denture care are not maintained hygienically or when treatment is taken inadequately. Ill-fitting dentures are also a common recurring cause of<unk> .
Angular cheilitis
Blepharochalasis
Vulvitis
Blepharitis
Tinea capitis
Blepharophimosis
Aguecheek disease
Linitis plastica