The term "parotid" refers to the largest of the salivary glands, located near the jaw and in front of the ears. These glands produce saliva, which aids in digestion and helps keep the mouth moist. The parotid glands are responsible for secreting a significant portion of the saliva produced in the body. In addition to their role in digestion, the parotid glands can be affected by various conditions, such as mumps, an infectious disease that can cause swelling in these glands. Other issues may include salivary stones or tumors, which can impact saliva production and overall oral health.