What Are the Causes of Xerostomia?
Xerostomia is a condition characterized by dry mouth due to a lack of saliva. Along with a dry mouth, patients with xerostomia experience cracked lips, bad breath, difficulty speaking and sore throat. In addition to the discomfort it causes, xerostomia also can cause tooth decay, digestion problems and an inability to taste food. There are a number of different causes of xerostomia.