Abstract: Hyposalivation is the reduction of salivary flow and Xerostomia is the sensation of having a dry mouth. Patient with this sensation of dry mouth will also have a noticeable and measurable decrease in the amount of saliva in their mouths, a condition referred to as hyposalivation. Saliva is a key element in oral homeostasis, oral function and maintenance of oral health. Dry mouth has multiple oral health consequences and affects quality of life. This article emphasizes on the oral complications and lesions that can be commonly encountered among patients with hyposalivation.