salivary gland swelling causes
A salivary gland infection occurs when a bacterial or viral infection affects the salivary gland or duct. The infection can result from reduced saliva flow or the blockage or inflammation of a salivary duct.The condition is called sialadenitis. Your mouth is almost constantly flushed with saliva. salivary gland infection occurs when a bacterial or viral infection affects the salivary gland or duct. The infection can result from reduced saliva flow or the blockage or inflammation of a salivary duct.