There can be many different kinds of mumps, and recurrent attacks may be caused by different pathogens, or different diseases that cause mumps repeatedly. Mumps can commonly be classified as mumps, mumps suppurativa, or mumps caused by other viruses, as well as other diseases that can cause mumps. Mumps is caused by the mumps virus and is a lifelong immune disease, so you will only get mumps once in your life and will not get mumps twice. Suppurative mumps is a bacterial infection that can recur. Other viruses can also cause enlargement of the parotid gland, such as adenovirus, influenza virus, parainfluenza virus, and the enterovirus coxsackie. Some autoimmune diseases or chronic diseases, such as diabetes, chronic liver disease, and malnutrition, can also cause parotitis. There are also swollen parotid glands due to swelling and obstruction of the parotid duct area.