Sialosis can be defined as a multifactorial disease of the salivary glands which is characterized by a painless bilateral swelling. Such growth is commonly seen in parotid gland and followed by a decreased salivary production which invariably leads to xerostomia. Sialosis described as a particular consequence of diabetes, mean increased the volume of the glands is due to the infiltration of fatty in the parenchyma. Ultrasonography B-scan is the most common accepted tool for determining parotid gland enlargement.